Additional response codes for extending alias support (#135)

* add additional response codes

* fix typo

* remove auto renew response code as there is ` INVALID_AUTORENEW_ACCOUNT`

* add support to update alias for existing accounts without `alias` set

services/crypto_update.proto

@@ -129,4 +129,12 @@ message CryptoUpdateTransactionBody {
      * including implicit and explicit associations.
      */
     google.protobuf.Int32Value max_automatic_token_associations = 15;
+
+    /**
+     * If set, the new public key bytes to be used as the account's alias. Alias can be updated
+     * only on accounts that does not have it set previously. It will be immutable once it is
+     * set on an account. For successful update of alias, the corresponding alias private key
+     * should sign the transaction.
+     */
+    bytes alias = 16;
 }

services/response_code.proto

@@ -476,12 +476,12 @@ enum ResponseCodeEnum {
   /**
    * [Deprecated]. attempt to set negative receive record threshold
    */
-  INVALID_RECEIVE_RECORD_THRESHOLD = 86 [deprecated=true];
+  INVALID_RECEIVE_RECORD_THRESHOLD = 86 [deprecated = true];
 
   /**
    * [Deprecated]. attempt to set negative send record threshold
    */
-  INVALID_SEND_RECORD_THRESHOLD = 87 [deprecated=true];
+  INVALID_SEND_RECORD_THRESHOLD = 87 [deprecated = true];
 
   /**
    * Special Account Operations should be performed by only Genesis account, return this code if it
@@ -1116,4 +1116,24 @@ enum ResponseCodeEnum {
    * type actually has.
    */
   UNEXPECTED_TOKEN_DECIMALS = 283;
+
+  /**
+   * The proxy account id is invalid or does not exist.
+   */
+  INVALID_PROXY_ACCOUNT_ID = 284;
+
+  /**
+   * The transfer account id in CryptoDelete transaction is invalid or does not exist.
+   */
+  INVALID_TRANSFER_ACCOUNT_ID = 285;
+
+  /**
+   * The fee collector account id in TokenFeeScheduleUpdate is invalid or does not exist.
+   */
+  INVALID_FEE_COLLECTOR_ACCOUNT_ID = 286;
+
+  /**
+   * The alias already set on an account cannot be updated using CryptoUpdate transaction.
+   */
+  ALIAS_IS_IMMUTABLE = 287;
 }