Update v0.081 Paint Bucket

The focus of the update is the addition of the paint bucket tool and improved performance.

0.081

• Added the paint bucket tool. Works with the CHR page and the Nametable area.
• Added tool specific buttons for the Pen, Tile and Bucket tools.
• Added contiguous paint toggle.
• Removed shift and control hotkeys for handling when to affect pixels and attributes. These are now handled by the tool buttons.
• Lowered NAW's fps from 120 to 30 for less intensive CPU/GPU usage. Changed from custom to system cursors as a consequence.
• Added checkbox button type.
• Added "draw pixel" and "draw attribute" options to the Pen, Tile and Bucket tools.
• Added the zoom tool to the toolbar.
• Added nam stats display. Mouse over the nametable area to get info on the status bar.
• Added the hotkeys under the File menu.
• Picking a tile with the right mouse button now also picks the pixel color and tile attribute.
• Picking a color now updates the CHR page attribute live.
• Optimized the color picker's performance.
• Fixed issue with combination of auxiliary keys (control, shift, alt) and hotkeys.
• Fixed a bug with exporting nametables 1, 2 and 3.
• Fixed the automatic selection of which CHR page to set as active when importing a PPU dump.
• Fixed the hotkey for saving the project.