WIP: fVDB CI Integration #2346

Job	Run time
linux-nanovdb:cxx:g++-Release	1m 33s
linux-nanovdb:cxx:g++-Debug	1m 32s
linux-nanovdb:cxx:clang++-Release	1m 28s
linux-nanovdb:cxx:clang++-Debug	1m 23s
macos-nanovdb (macos-11, clang++, Release)	1s
macos-nanovdb (macos-11, clang++, Debug)	1s
nanovdb-lite	2m 54s
windows-nanovdb (x64-windows-static, Release, -A x64 -G \"Visual Studio 17 2022\" -DOPENVDB_CORE_...	16m 48s
windows-nanovdb (x64-windows-static, Debug, -A x64 -G \"Visual Studio 17 2022\" -DOPENVDB_CORE_SH...	15m 46s
windows-nanovdb (x64-windows, Release, -A x64 -G \"Visual Studio 17 2022\" -DOPENVDB_CORE_STATIC=...	16m 46s
windows-nanovdb (x64-windows, Debug, -A x64 -G \"Visual Studio 17 2022\" -DOPENVDB_CORE_STATIC=OFF)	16m 57s
	1h 15m 9s

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