Merge branch 'heimdall' into 'main'

autobuild.xml

doc/contributions.txt

indra/CMakeLists.txt

indra/cmake/00-Common.cmake

indra/cmake/CMakeLists.txt

indra/cmake/Copy3rdPartyLibs.cmake

indra/cmake/FindZLIBNG.cmake

indra/cmake/LLCommon.cmake

indra/cmake/LLMeshOptimizer.cmake

indra/cmake/LLPrimitive.cmake

indra/cmake/MESHOPTIMIZER.cmake

indra/cmake/Sentry.cmake

indra/cmake/Tracy.cmake

indra/cmake/ZLIBNG.cmake

indra/doxygen/CMakeLists.txt

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

indra/lib/python/indra/util/llmanifest.py

indra/llappearance/llavatarappearance.cpp

indra/llappearance/lldriverparam.h

indra/llappearance/llpolymesh.cpp