Myriad of Fixes

Fixes

• "Fix Shadeless" to be more understandable. Now does not apply on Avatars (TODO: Add Warning dialog)
• Fixed Finger detection for naming schemes using shorthand _L after index (CATS finger fix).
• Updated reference Pose to match the new pose

Features

• Detect missing Spine1 between Spine2 and Spine in Custom importer, and fix the bones if such occurs to avoid issues with the animation playback
• Added Clear Pose button next to Tpose button
• Added Pin Problem bones (Straightens spine) May require manual tweaking after press
• Returned Recalculate roll back button, now Match reference Rolls
• Added Compress Materials button
• Automatic Binding Common PMD/CATS Blendshapes into Faceshift compat.