Change locker prices

Signed-off-by: billal007 <billalkohistani@gmail.com>
Fixed AddBuildingWindow

Signed-off-by: billal007 <billalkohistani@gmail.com>
Fixed bugs

Signed-off-by: billal007 <billalkohistani@gmail.com>
Merge branch 'master' of https://github.com/ESpearman/COMP3350-Group-Project