CombatTrack: import of sys and call to single character input
Revert "CombatTrack: import of sys and call to single character input"

This reverts commit 67760c29d05b4a9ee320dc70a825d8367d15ab38.
CombatTrack: Add new file to support the move to curses
CombatTrack: Initial change to curses with main menu working as intended!
CombatTrack: Full conversion of CMBTimerCurses.py complete
CombatTrack: test changes for curses
Correct several cases where prompt for user input was not consistant
Handle bad linux versions correctly
Furether protections to screen overwrite, added more verbose comments for TODO.
Cleanup of TimerCurses, unified return key
Clerification of keysToDelete function
Cleanup of SpellbookCLI interface code. Better Help section.
Addition of new dice functions, update of roller code.
Blank new file for advanced SpellBook filtering
SpellBookCLI2 was out of sync, correcting this.
Basic filter support added to SpellBookCLI2
Minor comment change
Added lots of user help. Cleaned up comments
Comments for AddFilter function
Implimented Remove Filter function