v1.0 - New Rotated Set

Additional new feature, and also fixed some minor inconsistency in creating brush set from cels. 

✨ Rotated Set Creation

 Easily create rotated sets for your artwork:

• Grid Tiles: Divide a selected area into grid-based rotated sets, ideal for tilesets.
• Separate Selections: Generate rotated sets from multiple distinct selections on your canvas.
• Selected Cels: Rotate images across a range of cels in the timeline, perfect for animation frames.

Use these rotated sets as pre-configured brush sets for seamless workflows!