fix build of bsdconv_dbg on linux
add sanity check into bsdconv_dbg
rename state status DUMMY to NOMATCH as it is actually not "dummy"
complete previous commit
bsdconv_dbg: add license, print state address
bsdconv_dbg: print offset instead of address
introduce state status SUBMATCH_SUBROUTINE for use in EBCDIC MBCS, API changed, bump SHLIBVER