Brick building as of right now does not implement the undo action properly. This commit addresses the issue with undoing button being non-functional server side and implements the GM needed for addressing further issues.
Implement GameMessage UnUseModel which is called when a model in BrickBuilding is UnUsed. Important for UGC content down the line. Final code has been tested as follows:
1. Placed a model in brick build
2. saved placed a brick
3. repeat 2 and 3 twice more for 6 total models
4. Place a new model in brick mode and then edit all 7 models into one brick model instance
5. Pressing undo returns the converted model to the inventory and properly discards the other 6 without crashing. Intended live behavior is to store this in the inventory instead however behind the scenes work is needed to implement UGC models properly.
Implement enum
Implement the BlueprintSaveResponseType enum so there are less magic numbers sent via packets.
Correct int sizes from unsigned int to uint32_t
Add deserialize test
Add a test for de-serializing a GM that is sent to the client. Assertions verify the data is in the correct order and has no extra information.
