Merge pull request #333 from scottaiton/unit_test_constructor_updates #869

Job	Run time
CMake Serial Minimal Build on Linux	56s
CMake build on MacOS	7m 32s
CMake Serial With Clawpack Build on Linux	7m 7s
CMake Serial With Clawpack and HDF Build on Linux	7m 58s
CMake Serial With GeoClaw Build on Linux	1m 15s
CMake Serial With CudaClaw (CUDA 10.1) Build on Linux	2m 59s
CMake Serial With CudaClaw (CUDA 11.3) Build on Linux	4m 3s
CMake MPI Minimal Build on Linux	1m 16s
CMake MPI With Clawpack Build on Linux	7m 32s
CMake MPI With Clawpack and HDF Build on Linux	8m 32s
CMake MPI With GeoClaw Build on Linux	1m 57s
CMake MPI With CudaClaw (CUDA 10.1) Build on Linux	4m 19s
CMake MPI With CudaClaw (CUDA 11.3) Build on Linux	4m 58s
CMake MPI With ThunderEgg Build on Linux	3m 23s
	1h 3m 47s

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