[BIT 584] [feature] btcli register output stats not in place

[camfairchild]

Previously the registration statistics were always output in-place, overwriting the old information.
To help with logging performance, this PR adds a flag --subtensor.register.output_in_place <bool>

Setting this flag to false (default true) makes the logging send output to new lines instead.

This PR also addresses an issue with the flag --subtensor.register.cuda.use_cuda <bool> and --wallet.reregister <bool> where they were parsed as bool(str) instead of strtobool(str), meaning "" == False and "False" == True and, importantly --cuda.use_cuda False was parsed as True