Merge pull request 'feat: add taker agreement already accepted err' (#33) from fix/market-taker into v2

Reviewed-on: #33

errors/v1/msg.proto

@@ -51,6 +51,7 @@ enum ErrCode {
   BANK_INFO_NOT_FOUND = 3007;
   RECIPIENT_NOT_FOUND = 3008;
   USER_NOT_FOUND = 3009;
+  MARKET_AGREEMENT_ALREADY_ACCEPTED = 3010;
 
   // Resource state errors
   ASSET_NOT_ACTIVE = 4000;