Standardize contracts for multichain deployment

[0xdcota]

Discussion with Tiago for work scope definition:

• [x] Create a new folder that has the main contract that can deploy a Fuji instance in a new chain.

• [ ] Polygon instance will be updated to the new format the contracts.

• [x] Any reference to the blockchain native token should be referred as native

• [x] Polygon deploy scripts will require update.

• [x] Polygon tests should checked after updates.

• [x] Contracts that should be abstracted:

• FujiVault.sol

• Fliquidator.sol

• Swapper.sol

• LibUniversalERC20 (use the one on mainnet, but make 'native')

• LibUniversalERC20Upgradeable (this is probably not needed)

• ProxyReceiver.sol

• Unwrapper.sol

• Flasher.sol

Time : 6 day task

[0xdcota]

Contracts
│   Controller.sol
│   FujiAdmin.sol
│   FujiERC1155.sol
│   FujiMapping.sol
│   FujiOracle.sol
(add new 'any' chain contracts here)  F2Vault.sol, F2Liquidator.sol
│
├───abstracts
├───fantom
├───interfaces
├───libraries
├───mainnet
├───mocks
└───polygon
    │   KashiMappingMATIC.sol
    └───providers
          - ProvidarAaveV3MATIC.sol
          - ProviderAaveMATIC.sol
          - ProviderKashi.sol
          - ProviderWePiggy.sol

[tiagofneto]

Contract progress:

• [x] FujiVault.sol
• [x] Fliquidator.sol
• [x] Swapper.sol
• [x] LibUniversalERC20 (use the one on mainnet, but make 'native')
• [x] LibUniversalERC20Upgradeable (this is probably not needed)
• [x] ProxyReceiver.sol
• [x] Unwrapper.sol
• [ ] Flasher.sol