DRTVWR-601: Merge branch 'release/gltf-maint2' into DRTVWR-601-gha-libs

autobuild.xml

indra/llcommon/llsingleton.h

indra/llrender/llrendernavprim.cpp

indra/newview/VIEWER_VERSION.txt

indra/newview/app_settings/settings.xml

indra/newview/llenvironment.cpp

indra/newview/llfloaterchangeitemthumbnail.cpp

indra/newview/llfloatereditextdaycycle.cpp

indra/newview/llfloaterfixedenvironment.cpp

indra/newview/llgltfmateriallist.cpp

indra/newview/llgltfmateriallist.h

indra/newview/llinventoryfunctions.cpp

indra/newview/llinventoryfunctions.h

indra/newview/llmaterialeditor.cpp

indra/newview/llpanelface.cpp

indra/newview/llpanelprofile.cpp

indra/newview/llselectmgr.cpp

indra/newview/llsettingsvo.cpp

indra/newview/llstartup.cpp

indra/newview/lltexturectrl.cpp