Add contract nonces related fields (#257)

* Add virtual addresses nonce related fields
* Update the definition of contract nonces from map to a list of ContractNonceInfo
* Add description for new fields
* Update VirtualAddress info to be with flat structure
* Address more comments
* Remove virtual addresses related changes
* Restore crypto_get_info.proto
* Move ContractNonceInfo to contract_call_local.proto
* Fix indentation of comments
* Add suggested comment
* Move ContractNonceInfo to a new contract_types.proto file

Signed-off-by: Stoyan Panayotov <stoyan.panayotov@limechain.tech>
Signed-off-by: Miroslav Gatsanoga <miroslav.gatsanoga@limechain.tech>
Signed-off-by: Stoyan Panayotov <stoyan.panayotov@limechain.tech>
Co-authored-by: Stoyan Panayotov <stoyan.panayotov@limechain.tech>

services/contract_call_local.proto

@@ -29,6 +29,7 @@ option java_multiple_files = true;
 import "basic_types.proto";
 import "query_header.proto";
 import "response_header.proto";
+import "contract_types.proto";
 
 import "google/protobuf/wrappers.proto";
 
@@ -162,6 +163,12 @@ message ContractFunctionResult {
      * ContractCreateTransactionBody or a ContractCallTransactionBody.     
      */
     AccountID sender_id = 13;
+
+    /**
+     * A list of updated contract account nonces containing the new nonce value for each contract account.
+     * This is always empty in a ContractCallLocalResponse#ContractFunctionResult message, since no internal creations can happen in a static EVM call.
+     */
+    repeated ContractNonceInfo contract_nonces = 14;
 }
 
 /**

services/contract_types.proto

@@ -0,0 +1,47 @@
+syntax = "proto3";
+
+package proto;
+
+/*-
+ * ‌
+ * Hedera Network Services Protobuf
+ * ​
+ * Copyright (C) 2018 - 2023 Hedera Hashgraph, LLC
+ * ​
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ‍
+ */
+
+option java_package = "com.hederahashgraph.api.proto.java";
+// <<<pbj.java_package = "com.hedera.hapi.node.contract">>> This comment is special code for setting PBJ Compiler java package
+option java_multiple_files = true;
+
+import "basic_types.proto";
+
+import "google/protobuf/wrappers.proto";
+/**
+ * Info about a contract account's nonce value.
+ * A nonce of a contract is only incremented when that contract creates another contract.
+ */
+message ContractNonceInfo {
+
+  /**
+   * Id of the contract
+   */
+  ContractID contract_id = 1;
+
+  /**
+   * The current value of the contract account's nonce property
+   */
+  int64 nonce = 2;
+}