Merge pull request 'change to [maker/taker]' (#30) from ref/tfa_enum into v2

Reviewed-on: #30

auth/v1/msg.proto

@@ -266,11 +266,12 @@ enum TfaStateEnum {
   INTERNAL_TRANSFER = 2;
   EXTERNAL_TRANSFER = 3;
   REDEEM_TOKEN = 4;
-  MARKET_PLACE_PURCHASE = 5;
-  MARKET_PLACE_ORDER_CREATE = 6;
-  MARKET_PLACE_ORDER_CANCEL = 7;
-  IRT_WITHDRAWAL = 8;
-  IRT_DEPOSIT = 9;
+  MARKET_PLACE_MAKER = 5;
+  MARKET_PLACE_TAKER = 6;
+  MARKET_PLACE_ORDER_CREATE = 7;
+  MARKET_PLACE_ORDER_CANCEL = 8;
+  IRT_WITHDRAWAL = 9;
+  IRT_DEPOSIT = 10;
 }
 
 message Recipient {