* Refactor Controls to default to MouseFilterMode.Ignore
* Clean up MouseFilterMode.Ignore from Controls
* Fix BoxContainer eating UI clicks
* Fix ScrollContainer using the wrong variable
* Refactor ContainerButtons to use a StyleClass for formatting instead of typeof
* Refactor BaseButton to work when child has MouseFilter.Pass
* Add style to TextureRect
* Implement ContainerButton
ContainerButton is a button that resizes to fit the Controls it contains.
* Refactor OptionButton to use ContainerButton
This allows OptionButton to have an inverted triangle icon on the right to make it more obvious that the button is an OptionButton.
* Fix Popup not updating size when opened
* Fix DrawMode not getting updated when _pressed is changed
* Refactor Button to inherit from ContainerButton
* Refactor CheckBox to inherit from ContainerButton
* Fix Control.StyleClasses.GetEnumerator
It was calling GetEnumerator in an infinite loop instead of getting _styleClasses.GetEnumerator like it was supposed to do.
* Update Button references
* Fix Styling
