saAmfProtectionGroupTrack bug

saAmfProtectionGroupTrack failed, because AIS spec mandates SaNameT

"the value field contains the characters in the string without the terminat-
ing null character, and the length field the number of these characters"

But clAmsParserEntityAttrParser saves ams entity's ClNameT length with
the trailing null character, so clAmsCSIAddToPGTrackList failed to
clAmsEntityDbFindEntity csi in amsDB.

There should be conversion between SaNameT and ClNameT, or ClNameT conformant
to AIS spec. I doubt there might other similar problem in the code.

Thanks
Eddy