1. Move "undo.lua" to "CS2D/sys/lua/hc/modules/undo.lua"
2. Implement "config.txt" inside "CS2D/sys/lua/hc/hc.conf"
	a. Add the "undo" to the hc.modules table.
	b. Add the permission line at the bottom of the file where applicable.
	c. Add (and configure) the "hc.UNDO_MAX_HISTORY" where applicable.
