Add RSTSFLX V2.6. This is a file system access utility for RSTS

file systems.  It supports reading and writing as well as a number
of other operations, such as octal dump, file system initialize,
and file system check ("clean").

This was originally maintained as a Subversion repository at
svn://akdesign.dyndns.org/flx/branches/V2.6.
as suggested by Timothe Litt on the SIMH mailing list.

.gitignore

@@ -2,3 +2,34 @@
 *~
 *.bak
 *.o
+config11/config11
+converters/asc/asc
+converters/decsys/decsys
+converters/dtos8cvt/dtos8cvt
+converters/gt7cvt/gt7cvt
+converters/hpconvert/hpconvert
+converters/indent/indent
+converters/littcvt/littcvt
+converters/m8376/m8376
+converters/mt2tpc/mt2tpc
+converters/mtcvt23/mtcvtv23
+converters/mtcvtfix/mtcvtfix
+converters/mtcvtodd/mtcvtodd
+converters/noff/noff
+converters/sfmtcvt/sfmtcvt
+converters/strrem/strrem
+converters/strsub/strsub
+converters/tar2mt/tar2mt
+converters/tp512cvt/tp512cvt
+converters/tpc2mt/tpc2mt
+crossassemblers/hpasm/hpasm
+crossassemblers/macro1/macro1
+crossassemblers/macro7/macro7
+crossassemblers/macro8x/macro8x
+extracters/ckabstape/ckabstape
+extracters/mmdir/mmdir
+extracters/mtdump/mtdump
+extracters/rawcopy/RawCopy
+extracters/rstsflx/flx
+extracters/sdsdump/sdsdump
+extracters/tpdump/tpdump