Meson

Add a test utest.c for the C interface #90

Job	Run time
windows-latest/gcc-v11/Mode-static/Int32	5m 40s
windows-latest/gcc-v11/Mode-shared/Int32	6m 50s
windows-latest/gcc-v11/Mode-static/Int64	7m 52s
windows-latest/gcc-v11/Mode-shared/Int64	6m 28s
ubuntu-latest/gcc-v11/Mode-static/Int32	28s
ubuntu-latest/gcc-v11/Mode-shared/Int32	17s
ubuntu-latest/gcc-v11/Mode-static/Int64	19s
ubuntu-latest/gcc-v11/Mode-shared/Int64	21s
macos-13/gcc-v11/Mode-static/Int32	1m 35s
macos-13/gcc-v11/Mode-shared/Int32	2m 38s
macos-13/gcc-v11/Mode-static/Int64	1m 19s
macos-13/gcc-v11/Mode-shared/Int64	1m 24s
ubuntu-latest/intel-classic-v2021.10/Mode-static/Int32	2m 8s
ubuntu-latest/intel-classic-v2021.10/Mode-shared/Int32	2m 24s
ubuntu-latest/intel-classic-v2021.10/Mode-static/Int64	2m 10s
ubuntu-latest/intel-classic-v2021.10/Mode-shared/Int64	2m 26s
windows-latest/intel-v2023.2/Mode-static/Int32	2m 30s
windows-latest/intel-v2023.2/Mode-static/Int64	2m 32s
ubuntu-latest/intel-v2023.2/Mode-static/Int32	2m 6s
ubuntu-latest/intel-v2023.2/Mode-shared/Int32	2m 8s
ubuntu-latest/intel-v2023.2/Mode-static/Int64	2m 6s
ubuntu-latest/intel-v2023.2/Mode-shared/Int64	2m 17s
macos-latest/gcc-v13/Mode-static/Int32	33s
macos-latest/gcc-v13/Mode-static/Int64	37s
macos-latest/gcc-v13/Mode-shared/Int32	34s
macos-latest/gcc-v13/Mode-shared/Int64	39s
	1h 0m 21s

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