Return to int64 for integer values

Summary

Returns to int64 as transport representation (and client representation) for integer values.

Server implemenation in caosdb-server!29 (merged)

Focus

• Most of the changes are "just" replacing the int32_t with int64_t.
• Also, a typo in ccaosdb.cpp which is unrelated has been fixed and tested.

Test Environment

• No manual testing needed.
• Integration tests are in caosdb-cppinttest!14 (merged)

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• All automated tests pass
• Reference related Issues
• [ ] Up-to-date CHANGELOG.md
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  • Intent of new code
  • Problems with old code
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Check List for the Reviewer

• I understand the intent of this MR
• All automated tests pass
• [ ] Up-to-date CHANGELOG.md
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• Check: Are there specifications? Are they satisfied?

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include/caosdb/message_code.h

@@ -44,13 +44,22 @@ enum MessageCode {
   ENTITY_DOES_NOT_EXIST = caosdb::entity::v1alpha1::MessageCode::MESSAGE_CODE_ENTITY_DOES_NOT_EXIST,
   ENTITY_HAS_NO_PROPERTIES =
     caosdb::entity::v1alpha1::MessageCode::MESSAGE_CODE_ENTITY_HAS_NO_PROPERTIES,
+  INTEGER_VALUE_OUT_OF_RANGE =
+    caosdb::entity::v1alpha1::MessageCode::MESSAGE_CODE_INTEGER_VALUE_OUT_OF_RANGE,
+  ENTITY_HAS_BEEN_DELETED_SUCCESSFULLY =
+    MessageCode::MESSAGE_CODE_ENTITY_HAS_BEEN_DELETED_SUCCESSFULLY,
 };
 
 [[nodiscard]] inline auto get_message_code(int code) noexcept -> MessageCode {
   // TODO(tf) smarter, less forgot-it-prone implementation
-  static MessageCode all_codes[] = {MessageCode::UNSPECIFIED, MessageCode::UNKNOWN,
-                                    MessageCode::ENTITY_DOES_NOT_EXIST,
-                                    MessageCode::ENTITY_HAS_NO_PROPERTIES};
+  static MessageCode all_codes[] = {
+    MessageCode::UNSPECIFIED,
+    MessageCode::UNKNOWN,
+    MessageCode::ENTITY_DOES_NOT_EXIST,
+    MessageCode::ENTITY_HAS_NO_PROPERTIES,
+    MessageCode::INTEGER_VALUE_OUT_OF_RANGE,
+    MessageCode::ENTITY_HAS_BEEN_DELETED_SUCCESSFULLY,
+  };
 
   for (MessageCode known_code : all_codes) {
     if (known_code == code) {