runHLT_standalone: remove L1NSW and BIS78 options in favor of flags
Deprecate the shorthand NSW and BIS78 options in runHLT_standalone. The flags should be used instead. Migrate the two ART tests where they are used.
This required to change the default value of the flags to what was used as default in runHLT_standalone. I assume these flags are only ever used via runHLT_standalone (even for MC), so this should be fine. I also ran several ART tests manually and confirmed no change in configuration.
I did not find these options referenced on any TWiki (anymore). So I assume none of these options are explicitly used outside of these two ART tests.
cc @sshaw