biner_bool operation compatible for EMBFORMAT_STCHANDOBJ value

EMBFORMAT_STCHANDOBJ = EMBFORMAT_STITCHONLY + EMBFORMAT_OBJECTONLY.
Further, we can test later: whether OBJECT supported in the value
contained by STCHANDOBJ
Ignore temporary build files, up libname publicity

Don't propose any temp files to commit (in Github Desktop for Windows).
move publicity of libname (from private to global)
Merge branch 'master' into pascal

Conflicts:
	.gitignore
Multiple version of one format

New functions to list the supported formats, with distinct version
allowed
list of reader/writer of supported format

New approach to get the list of function to read/write embroidery.
will be Used in OpenDialogBox & SaveDialotBox
Color fix for polylines
Merge remote-tracking branch 'upstream/master'