CMake updates #880

Job	Run time
CMake build on MacOS	7m 56s
CMake Serial Minimal Build on Linux	43s
CMake Serial With Clawpack Build on Linux	6m 46s
CMake Serial With Clawpack and HDF Build on Linux	7m 51s
CMake Serial With GeoClaw Build on Linux	1m 4s
CMake Serial With CudaClaw (CUDA 10.1) Build on Linux	2m 50s
CMake Serial With CudaClaw (CUDA 11.3) Build on Linux	3m 41s
CMake MPI Minimal Build on Linux	1m 11s
CMake MPI With Clawpack Build on Linux	7m 20s
CMake MPI With Clawpack and HDF Build on Linux	8m 48s
CMake MPI With GeoClaw Build on Linux	1m 51s
CMake MPI With CudaClaw (CUDA 10.1) Build on Linux	3m 38s
CMake MPI With CudaClaw (CUDA 11.3) Build on Linux	4m 46s
CMake MPI With ThunderEgg Build on Linux	3m 28s
	1h 1m 53s

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