STP-134 Remove resources from VM

GameViewModel/GameViewModel.cs

GameViewModel/Resources/b_city_hall.png

GameViewModel/Resources/b_destroy_building.png

GameViewModel/Resources/b_destroy_zone.png

GameViewModel/Resources/b_help.png

GameViewModel/Resources/b_industrial_zone.png

GameViewModel/Resources/b_park.png

GameViewModel/Resources/b_pause.png

GameViewModel/Resources/b_police_station.png

GameViewModel/Resources/b_quit.png

GameViewModel/Resources/b_residential_zone.png

GameViewModel/Resources/b_resume.png

GameViewModel/Resources/b_road_selection.png

GameViewModel/Resources/b_road_single.png

GameViewModel/Resources/b_save.png

GameViewModel/Resources/b_service_zone.png

GameViewModel/Resources/b_speed1.png

GameViewModel/Resources/b_speed2.png

GameViewModel/Resources/b_speed3.png

GameViewModel/Resources/city_hall_BL.png