Feature request: Get ETH crosschain address easier V2

[quocble]

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type CrosschainAddress struct {
    Address    string
    QuantaAddr string
    TxHash     string
    Blockchain string
        Shared bool
        LastBlockNumber  uint64 // new
    Updated    time.Time
}

On new transaction

Everytime we see a transaction, update the LastBlockNumber

Implementation Configuration

• Set MINIMUM_BLOCK_REUSE > (24*60*60*5)/14 greater than 5 days old.

Add new address pool

• Introduce a new type of address with a quanta_addr: "address-pool"
• if quanta_addr = address-pool, mark as shared
• If we detect forward address with address-pool, add it in the address table.

**GenerateMultisig***

• Only generate for user that do not an address (prevent spamming)
• Everytime a user generate the address,
  • Get Shared=1 AND MIN(LastBlockNumber) AND Ensure that HeadBlockNumber - LastBlockNumber > MINIMUM_BLOCK_REUSE (easy to implement as a SQL)
• Update the toAddress to the new account (Yes we will take away from someone else if it is more than 5 days old)
• Return error if we do not have an address that meets such criteria

Request&Commit Since nodes could be different states, we should introduce a request and commit. MORE INFO later.