!fix(evm): Fix eth tx hashes in json-rpc responses (#1176)

* Fix eth tx hashes in json-rpc responses

Closes: #1175

- Remove Size_ field
- Validate From/Hash fields in ante handler
- Recompute tx hashes in json-rpc apis to cope with old blocks

Update CHANGELOG.md

remove Size_, validate Hash/From, add unit tests

update spec

Update CHANGELOG.md

Update app/ante/eth.go

populate From in SendRawTransaction

Apply suggestions from code review

keep Size_ field to avoid breaking tx format

* move some validation to ValidateBasic

* move validation to ValidateBasic

* make ToTransaction returns a valid msg

* restructure the protoTxProvider check

* add comment

* workaround tx hash issue in event parsing

* fix integration test

* fix unit test

Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com>

docs/api/proto-docs.md

@@ -477,7 +477,7 @@ MsgEthereumTx encapsulates an Ethereum transaction as an SDK message.
 | `data` | [google.protobuf.Any](#google.protobuf.Any) |  | inner transaction data
 
 caches |
-| `size` | [double](#double) |  | encoded storage size of the transaction |
+| `size` | [double](#double) |  | DEPRECATED: encoded storage size of the transaction |
 | `hash` | [string](#string) |  | transaction hash in hex format |
 | `from` | [string](#string) |  | ethereum signer address in hex format. This address value is checked against the address derived from the signature (V, R, S) using the secp256k1 elliptic curve |