merge master changes

CMakeLists.txt

doc/CHANGELOG.md

doc/changes/misc_features/mr.330.md

doc/changes/state_trackers/mr.377.md

src/xrt/auxiliary/util/u_hashmap.cpp

src/xrt/auxiliary/util/u_hashmap.h

src/xrt/auxiliary/vk/vk_helpers.c

src/xrt/auxiliary/vk/vk_helpers.h

src/xrt/compositor/client/comp_gl_client.c

src/xrt/compositor/client/comp_vk_client.c

src/xrt/compositor/main/comp_compositor.c

src/xrt/compositor/main/comp_compositor.h

src/xrt/compositor/main/comp_layer.c

src/xrt/compositor/main/comp_layer.h

src/xrt/compositor/main/comp_layer_renderer.c

src/xrt/compositor/main/comp_layer_renderer.h

src/xrt/compositor/main/comp_renderer.c

src/xrt/compositor/main/comp_renderer.h

src/xrt/compositor/main/comp_swapchain.c

src/xrt/compositor/meson.build