Major bug

Major bug was found with the building model used on the game. I used blender archipack to create buildings and architectures since its easy to do so. But found that the models created using archipack causes some sort of a memory issue on low end devices or mobiles. ultimately causing FPS loss. 

solution is to redo the entire building model using booleans and other blender standard tools. 

this is being done at the moment and 0.13 will have a bit different restaurant and improved fps on mobile.