Add CNIC loader from custom branch of Arbor @drosophilia #92

Job	Run time
Build on Ubuntu (Ubuntu Clang, ubuntu-24.04, clang-18, clang++-18)	9m 48s
Build on MacOS (MacOS XIV, macos-14, clang, clang++)	7m 0s
Build on MacOS (MacOS XV, macos-15, clang, clang++)	7m 48s
Build on Ubuntu (Ubuntu GCC, ubuntu-24.04, gcc-14, g++-14)	10m 1s
	34m 37s

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