Sprite Editor

# Notes
- Allows 256 8x8 sprites
- Last two tabs shared with lower half of map
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# Shortcutes
- **H/V -** Flip sprite horizontally/vertically
- **R -** Rotate clockwise
- **Q/W or -/= -** Move to the previous/next sprite
- **Shift-Q/Shift-W or _/+ -** Move one row of sprites back/forward
- **1/2 -** Move to the previous/next color
- **Arrow Keys -** - Loop
- **Mousewheel / </> -** zoom in/out
- **Space -** Pan
-  **RIght Click -** Select color under Mouse
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