Sukaku Explainer v1.17.7

Fixed minor bug in SudokuFrame options
Adjustments to Warning Hints reflecting variants
Minor Generator improvements
Updated Strong Links Turbot Fish with X-Loops/Rings
Added Ferz NC
Added TUVWYZ and UVWXYZ
Update default solving techniques
Fixed issue with default technique selection
Uniqueness can be used in Forbidden Pairs puzzles
Fixed windows regions highlighting
Fixed pencilmarks issue after loading sudoku from file
Update settings release after Fix #93 #94
Cosmetic Hint changes