Meson

libnixt: add Serialize/Deserialize #1827

Job	Run time
nix-build-develop-gcc (none, release, true)	3m 18s
nix-build-develop-gcc (none, release, false)	3m 8s
nix-build-develop-clang (none, release, true)	2m 54s
nix-build-develop-gcc (none, debug, true)	3m 2s
nix-build-develop-clang (none, release, false)	2m 57s
nix-build-develop-gcc (none, debug, false)	3m 7s
nix-build-develop-clang (none, debug, true)	2m 42s
nix-build-develop-gcc (undefined, release, true)	6m 34s
nix-build-develop-clang (none, debug, false)	2m 43s
nix-build-develop-gcc (undefined, release, false)	6m 44s
nix-build-develop-gcc (undefined, debug, true)	3m 35s
nix-build-develop-gcc (undefined, debug, false)	3m 38s
	44m 22s

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