added basic python bot

by Tom W
new command line switch for setting games-per-match

-gN where N is an integer >= 1, used in 1v1 round robin tournement
added command line to control tournement type(s)

-t
followed by either r (1v1 round round robin) and/or e (multi player
elimination)
refactor: round robin moved out of main
refactor: elimination moved out of main
const fixes, allows ctrl of tournement order, & repeat tournements
Fixed spelling of "tournament", & added error check & report unknown tournament types.