Added history dialog, cannot display all types yet

Added history support for adding objects.

Added history management for cut and paste, copy doesn't alter the object list by itself so it doesn't touch history

Added history handling for quad splitting.

Added history management for auto-bordering (and mass-addition in general)

History handling for list moving

Added history handling for set contents

Allow undo of set color

Allow the user to alter the tool bar icon size

Split some stuff out of the edit tool bar into move and object tool bars. The object tool bar is now located on the left side of the screen as the top one is running out of space.

Added icons for undo and redo

Added undo/redo foundations. Capable of undoing and redoing delete operations

Added move up/down actions.

Added a button to clear a keyboard shortcut.

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mercurial