Misc skinning

Skinned BNToastFrame
Skinned Character frame tabs
Skinned Interface options dropdowns
Added function for skinning close buttons
Character Frame Skinning

Removed character frame portrait
Condensed item slots
Removed slot popout button
More CharacterFrame skinning
API Changes

Change SetScript to HookScript for CreateButton
Remove most of S.CreateButton function in favor of simply calling
SkinButton
Fix CreateButton calls
Fix OOR Alpha and (hopefully) CompactRaidManager
Fix last CreateButton call