SL-18330: Merge branch 'main' of secondlife/viewer into xcode-14.3

.github/workflows/stale.yaml

autobuild.xml

doc/contributions.txt

indra/cmake/Copy3rdPartyLibs.cmake

indra/cmake/LLCommon.cmake

indra/cmake/Variables.cmake

indra/cmake/xxHash.cmake

indra/edit-me-to-trigger-new-build.txt

indra/integration_tests/llui_libtest/CMakeLists.txt

indra/llappearance/llavatarappearance.cpp

indra/llappearance/llavatarappearance.h

indra/llappearance/llavatarappearancedefines.cpp

indra/llappearance/llavatarjoint.cpp

indra/llappearance/llavatarjointmesh.cpp

indra/llappearance/lldriverparam.cpp

indra/llappearance/lllocaltextureobject.cpp

indra/llappearance/llpolymesh.cpp

indra/llappearance/llpolymorph.cpp

indra/llappearance/llpolyskeletaldistortion.cpp

indra/llappearance/lltexglobalcolor.cpp