Meson

Add a test utest.c for the C interface #91

Job	Run time
windows-latest/gcc-v11/Mode-static/Int32	5m 25s
windows-latest/gcc-v11/Mode-shared/Int32	5m 48s
windows-latest/gcc-v11/Mode-static/Int64	7m 14s
windows-latest/gcc-v11/Mode-shared/Int64	9m 52s
ubuntu-latest/gcc-v11/Mode-static/Int32	21s
ubuntu-latest/gcc-v11/Mode-shared/Int32	19s
ubuntu-latest/gcc-v11/Mode-static/Int64	20s
ubuntu-latest/gcc-v11/Mode-shared/Int64	20s
macos-13/gcc-v11/Mode-static/Int32	1m 42s
macos-13/gcc-v11/Mode-shared/Int32	1m 2s
macos-13/gcc-v11/Mode-static/Int64	1m 13s
macos-13/gcc-v11/Mode-shared/Int64	1m 7s
ubuntu-latest/intel-classic-v2021.10/Mode-static/Int32	2m 6s
ubuntu-latest/intel-classic-v2021.10/Mode-shared/Int32	2m 9s
ubuntu-latest/intel-classic-v2021.10/Mode-static/Int64	2m 13s
ubuntu-latest/intel-classic-v2021.10/Mode-shared/Int64	2m 21s
windows-latest/intel-v2023.2/Mode-static/Int32	2m 6s
windows-latest/intel-v2023.2/Mode-static/Int64	2m 11s
ubuntu-latest/intel-v2023.2/Mode-static/Int32	2m 6s
ubuntu-latest/intel-v2023.2/Mode-shared/Int32	2m 3s
ubuntu-latest/intel-v2023.2/Mode-static/Int64	2m 5s
ubuntu-latest/intel-v2023.2/Mode-shared/Int64	2m 9s
macos-latest/gcc-v13/Mode-static/Int32	38s
macos-latest/gcc-v13/Mode-static/Int64	42s
macos-latest/gcc-v13/Mode-shared/Int32	32s
macos-latest/gcc-v13/Mode-shared/Int64	41s
	58m 45s

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