Meson

Add a test utest.c for the C interface #81

Job	Run time
windows-latest/gcc-v11/Mode-static/Int32	7m 40s
windows-latest/gcc-v11/Mode-shared/Int32	3m 12s
windows-latest/gcc-v11/Mode-static/Int64	7m 15s
windows-latest/gcc-v11/Mode-shared/Int64	5m 56s
ubuntu-latest/gcc-v11/Mode-static/Int32	21s
ubuntu-latest/gcc-v11/Mode-shared/Int32	22s
ubuntu-latest/gcc-v11/Mode-static/Int64	17s
ubuntu-latest/gcc-v11/Mode-shared/Int64	21s
macos-13/gcc-v11/Mode-static/Int32	1m 33s
macos-13/gcc-v11/Mode-shared/Int32	1m 23s
macos-13/gcc-v11/Mode-static/Int64	1m 3s
macos-13/gcc-v11/Mode-shared/Int64	1m 25s
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 9s
ubuntu-latest/intel-classic-v2021.10/Mode-shared/Int64	2m 7s
windows-latest/intel-v2023.2/Mode-static/Int32	8m 49s
windows-latest/intel-v2023.2/Mode-static/Int64	5m 56s
ubuntu-latest/intel-v2023.2/Mode-static/Int32	2m 4s
ubuntu-latest/intel-v2023.2/Mode-shared/Int32	2m 10s
ubuntu-latest/intel-v2023.2/Mode-static/Int64	2m 9s
ubuntu-latest/intel-v2023.2/Mode-shared/Int64	2m 5s
macos-latest/gcc-v13/Mode-static/Int32	36s
macos-latest/gcc-v13/Mode-static/Int64	30s
macos-latest/gcc-v13/Mode-shared/Int32	33s
macos-latest/gcc-v13/Mode-shared/Int64	29s
	1h 4m 57s

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