fzsl:  expand the scanner

Expand the scanner object more so that we can start working on using
config files to define multiple scanners.
fzsl:  move main ui wrapper to bin wrapper
fzsl:  add support for user configuration of scanning rules

resolves #1
setup:  move fzsl.bash to etc
fzsl:  select scanning rule from command line

also fix a couple of print statements for python3