Add Debug MenuItem

Meant as a button for doing any sort of debug/development operations.
Add Text Alignment Experiments
Add ZIndex Expiriments
Fix UnitTest References
Partially Move XMLReader to LibEnACT

Partially copies the Reader to LibEnACT. Moves the XMLReader extention
methods into this new class, and changes the use of EditorCaption to
just regular captions.
Add Event LoadCaptionsRequested to ViewModel
Rename Main Window to PlayerView