refactor!: change many `U256` type to `U64`

[KaoImin]

What this PR does / why we need it?

This PR is substitute for #1539

Some mainly changes:

• Change the type of nonce from U256 to U64 according to the EIP-2681 limit the account nonce to be between 0 and 2^64-1.
  • Change the type of gas_limit from U256 to U64. According to the current gas cost of the most complex ethereum transaction is on the order of million, U64 is enough.
• Change the type of chain_id from U256 to U64 according to metamask limit. The ChainId opcode returns a 256-bit value, so it should not larger than U256::MAX / 2 - 35.This issue does not lead to consensus in Ethereum community, however, I think limit the max chain ID to 4503599627370476 is enough currently. Many temporary L2/L3 need a unique chain ID is the demand of variable-lenght chain ID in foreseeable future. But we do not have the demand now. If the day comes, we can change the chain ID type to U256 even without hardfork.
• Set the Default Max Price as 500 Gwei that is same as go-ethereum. Meanwhile, change the type of gas_price from U256 to U64.

What is the impact of this PR?

Breaking change

PR relation:

• Ref #1539
• Fix #1586
• test code updated: https://github.com/axonweb3/axon-test/compare/be8b502423fa41d4656ec2369d3ee5a729f56326...df72c7e1660537b445a349624b9b3b1584036393

CI Settings

### **CI Usage** **Tip**: Check the CI you want to run below, and then comment `/run-ci`. **CI Switch** - [x] Web3 Compatible Tests - [x] OpenZeppelin tests - [x] OCT 1-5 And 12-15 - [x] OCT 6-10 - [x] OCT 11 - [x] OCT 16-19 - [x] v3 Core Tests ### **CI Description** | CI Name | Description | | ----------------------------------------- | ------------------------------------------------------------------------- | | *Web3 Compatible Test* | Test the Web3 compatibility of Axon | | *v3 Core Test* | Run the compatibility tests provided by Uniswap V3 | | *OCT 1-5 \| 6-10 \| 11 \| 12-15 \| 16-19* | Run the compatibility tests provided by OpenZeppelin |

[yangby-cryptape]

References:

• Ethereum Yellow Paper
  • 4.2. The Transaction
  • nonce: a scalar value
  • gasPrice: a scalar value
  • gasLimit: a scalar value
  • value: a scalar value
  • chainId: unknown
  • 4.3. The Block
  • difficulty: a scalar value
  • number: a scalar value
  • gasLimit: a scalar value
  • gasUsed: a scalar value
  • timestamp: a scalar value
  • nonce: a 64-bit value
• Go Etherem:
  • Transaction

    chainID() *big.Int
    gas() uint64
    gasPrice() *big.Int
    gasTipCap() *big.Int
    gasFeeCap() *big.Int
    value() *big.Int
    nonce() uint64

  • Block

    Difficulty  *big.Int       `json:"difficulty"       gencodec:"required"`
    Number      *big.Int       `json:"number"           gencodec:"required"`
    GasLimit    uint64         `json:"gasLimit"         gencodec:"required"`
    GasUsed     uint64         `json:"gasUsed"          gencodec:"required"`
    Time        uint64         `json:"timestamp"        gencodec:"required"`
    Extra       []byte         `json:"extraData"        gencodec:"required"`
    MixDigest   common.Hash    `json:"mixHash"`
    Nonce       BlockNonce     `json:"nonce"`

[KaoImin]

References:

Ethereum Yellow Paper

4.2. The Transaction

• nonce: a scalar value
• gasPrice: a scalar value
• gasLimit: a scalar value
• value: a scalar value
• chainId: unknown

4.3. The Block

• difficulty: a scalar value
• number: a scalar value
• gasLimit: a scalar value
• gasUsed: a scalar value
• timestamp: a scalar value
• nonce: a 64-bit value

Go Etherem:

• Transaction
• Block

Difficulty  *big.Int       `json:"difficulty"       gencodec:"required"`
Number      *big.Int       `json:"number"           gencodec:"required"`
GasLimit    uint64         `json:"gasLimit"         gencodec:"required"`
GasUsed     uint64         `json:"gasUsed"          gencodec:"required"`
Time        uint64         `json:"timestamp"        gencodec:"required"`
Extra       []byte         `json:"extraData"        gencodec:"required"`
MixDigest   common.Hash    `json:"mixHash"`
Nonce       BlockNonce     `json:"nonce"`

chainID() *big.Int
gas() uint64
gasPrice() *big.Int
gasTipCap() *big.Int
gasFeeCap() *big.Int
value() *big.Int
nonce() uint64

According to the PR description, some types such as nonce, gasPrice, gasLimit, gasUsed have a specific range limitation, it is a waste of performance to use a variable-length BigUint. The Ethereum timestamp is accurate to the second, so u64 is enough. The only one that using variable-length scalar is chainId. The explanation of using U64 is written in the description.

[github-actions[bot]]

CI tests run on commit:

• commit id: https://github.com/axonweb3/axon/commit/e59e269b7aa08519cc171fa3fe9de4e602ad29c8

CI test list:

• OCT 1-5 And 12-15
• OCT 6-10
• OCT 11
• OCT 16-19
• v3 Core Tests
• Web3 Compatible Tests

  Please check ci test results later.

[KaoImin]

Wait for @sunchengzhu upgrade Web3 Compatible Tests workflow. cc @Flouse

[KaoImin]

/run-ci

[github-actions[bot]]

CI tests run on commit:

• commit id: https://github.com/axonweb3/axon/commit/41e8f186282193cb0f30c892498ec645916abbc7

CI test list:

• v3_core_test.yml
• web3_compatible.yml

  Please check ci test results later.

[Flouse]

/run-ci

run OpenZeppelin tests as well

[github-actions[bot]]

CI tests run on commit:

• commit id: https://github.com/axonweb3/axon/commit/41e8f186282193cb0f30c892498ec645916abbc7

CI test list:

• openzeppelin_test_1_5_and_12_15.yml
• openzeppelin_test_16_19.yml
• openzeppelin_test_6_10.yml
• openzeppelin_test_11.yml
• v3_core_test.yml
• web3_compatible.yml

  Please check ci test results later.

[sunchengzhu]

/run-ci

[github-actions[bot]]

CI tests run on commit:

• commit id: https://github.com/axonweb3/axon/commit/e05798d14722a3b596ce73341b163d3828205827

CI test list:

• openzeppelin_test_11.yml
• openzeppelin_test_6_10.yml
• openzeppelin_test_16_19.yml
• openzeppelin_test_1_5_and_12_15.yml
• v3_core_test.yml
• web3_compatible.yml

  Please check ci test results later.

[sunchengzhu]

/run-ci

[Flouse]

/run-ci

[github-actions[bot]]

CI tests run on commit:

• commit id: https://github.com/axonweb3/axon/commit/3d507e58b79326a697d25df74d7c6b5f03b04929

CI test list:

• openzeppelin_test_16_19.yml
• openzeppelin_test_6_10.yml
• openzeppelin_test_1_5_and_12_15.yml
• openzeppelin_test_11.yml
• v3_core_test.yml
• web3_compatible.yml

  Please check ci test results later.

[github-actions[bot]]

CI tests run on commit:

• commit id: https://github.com/axonweb3/axon/commit/3d507e58b79326a697d25df74d7c6b5f03b04929

CI test list:

• openzeppelin_test_1_5_and_12_15.yml
• openzeppelin_test_6_10.yml
• openzeppelin_test_16_19.yml
• openzeppelin_test_11.yml
• v3_core_test.yml
• web3_compatible.yml

  Please check ci test results later.