renaming minor stuff
added template inheritance
adding new textures to contentproj
template inheritance additional commit
forcing the button to return an empty list when disabled and GetElementStack is called
adding checkbox markup files
implementing CheckboxBase
implementing CheckboxBase
renaming CheckboxBase to Checkbox
cleaning checkbox code
Merge branch '11_checkbox' into feature_11
minor method rename
adding spritefonts
removing Text2D and replacing with the DebugText helper class
implementing TextBox class
propagating textbox changes
Merge branch '11_textboxes' into feature_11
making TextBox's font public
fixing null check bug
fixing plane clipping issue