bin: factor handling of -B/-C/-D/... output options
* src/bin/common_post.cc: Handle the options for BA/TGBA/Monitor as well as Complete/SBAcc here, and in the same group. Rename "Translation intent" and "Optimization level" to "Simplification goal" and "Simplification level" so that it makes sense even in autfilt. * src/bin/autfilt.cc, src/bin/dstar2tgba.cc, src/bin/ltl2tgba.cc: Remove common code. * doc/org/autfilt.org, doc/org/dstar2tgba.org, doc/org/ltl2tgba.org: Adjust sed invocations.