Merge pull request #322 from tim-griesbach/feature-restart #111

Job	Run time
CMake Serial Minimal Build on Linux	54s
CMake Serial With Clawpack Build on Linux	6m 48s
CMake Serial With GeoClaw Build on Linux	1m 5s
CMake Serial With CudaClaw (CUDA 10.1) Build on Linux	2m 41s
CMake Serial With CudaClaw (CUDA 11.3) Build on Linux	3m 50s
CMake MPI Minimal Build on Linux	1m 28s
CMake MPI With Clawpack Build on Linux	7m 37s
CMake build on MacOS	7m 28s
CMake MPI With GeoClaw Build on Linux	1m 52s
CMake MPI With CudaClaw (CUDA 10.1) Build on Linux	4m 1s
CMake MPI With CudaClaw (CUDA 11.3) Build on Linux	5m 4s
CMake MPI With ThunderEgg Build on Linux	3m 25s
	46m 13s

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