feat: add support for EIP712 and eth address standard

[pythonberg1997]

Description

Add support for EIP712 and eth address standard

Rationale

In order that users could sign BFS transactions by a ethereum wallet like MetaMask directly, we adopt eth's secp256k1 and address rules as our keys algorithm. Besides, adding EIP712 support will make it more user friendly.

Example

N/A

Changes

Notable changes:

• add cosmos Address implement, ETHAddress, which is compatible of BSC address
• add EIP712 related support(sign, verify)
• add secp256k1 algorithm support for key management

Reference

https://github.com/evmos/evmos/blob/main/app/ante/ante.go
https://github.com/evmos/evmos/blob/main/app/ante/handler_options.go
https://github.com/evmos/ethermint/blob/main/app/ante/eip712.go

[owen-reorg]

IMO, this is redundant. The effect is exactly the same with 236 - 250.

[owen-reorg]

msgs[0] here implied that we can only have 1 msg, but there is no associated check previously.
Maybe we should change

		if len(msgs) == 0 {
			return sdkerrors.Wrap(sdkerrors.ErrNoSignatures, "tx doesn't contain any msgs to verify signature")
		}

to

		if len(msgs) !=  1

[owen-reorg]

Or is it possible to make the TypedData support multiple msgs in one tx?

[owen-reorg]

Does the bfscli still work with the new signature mode? It might be necessary for internal quick test.

We may need an e2e test to demonstrate how to sign with Metamask.

Links might be useful:

• The TS function Metamask used to sign: https://github.com/MetaMask/eth-sig-util/blob/main/src/sign-typed-data.ts#L510-L521
• The method front-end may invoke: https://docs.metamask.io/guide/signing-data.html#sign-typed-data-v4
• A simple test dapp for use in MetaMask e2e tests, we can do some modification to run e2e test with Metamask: https://github.com/metamask/test-dapp

[fynnss]

A bit confuse about this PR. If we use Cosmos CLI to structure and send transactions, it will choose the signature method according to signMode. Just like the below code in cosmos-sdk.

func makeAuxSignerData(clientCtx client.Context, f Factory, msgs ...sdk.Msg) (tx.AuxSignerData, error) {
        // ....
	err = b.SetSignMode(f.SignMode())
	if err != nil {
		return tx.AuxSignerData{}, err
	}
        // ...
	sig, _, err := clientCtx.Keyring.Sign(name, signBz)
	if err != nil {
		return tx.AuxSignerData{}, err
	}
	b.SetSignature(sig)

	return b.GetAuxSignerData()
}

enum SignMode {
  // ...
  // Since: cosmos-sdk 0.45.2
  SIGN_MODE_EIP_191 = 191;
}

Are we considering adding a SigMode to support EIP712? if not, we can't use the Cosmos CLI.