Reduce the size of TroveManager.sol

[udosson]

The smart contract TroveManager.sol increased in size - probably due to the multi-asset feature - and is now bigger than the allowed 24576 bytes from EIP-170

The diamond pattern could be an option. (https://dev.to/mudgen/ethereum-s-maximum-contract-size-limit-is-solved-with-the-diamond-standard-2189)

We need to reduce the size of the smart contract.

Useful links:

• https://ethereum.org/en/developers/tutorials/downsizing-contracts-to-fight-the-contract-size-limit/
• https://medium.com/coinmonks/how-to-optimize-eth-smart-contract-size-part-1-a393f444a1df
• https://blog.polymath.network/solidity-tips-and-tricks-to-save-gas-and-reduce-bytecode-size-c44580b218e6

[asimpk]

TroveManager deployment error when starting local dev-chain yarn start-dev-chain Need to increase max code size limit in dev-chain\spec.json "maxCodeSize": 24576,