Add dictionary API to cgo wrapper #893

Job	Run time
Build and test cmake:gcc9	33s
Build and test cmake:clang15	51s
Build and test cmake:clang15:asan	51s
Build and test cmake:clang15:tsan	53s
Build and test cmake:clang15:ubsan	59s
Build and test cmake:qemu-arm-neon-gcc	1m 17s
Build and test cmake-osx:clang	22s
Build and test cmake-osx:gcc	24s
Build and test cmake-win64:msvc-rel	1m 16s
Build and test cmake-win64:msvc-dbg	46s
Build and test fuzz:clang15	37s
Build and test python3.10:clang15	1m 49s
Build and test python3.10-win	1m 9s
Build and test maven	45s
Build and test bazel:root	50s
Build and test bazel:go	1m 4s
Build and test bazel:java	2m 16s
Build and test bazel:research	23s
Build and test bazel-osx:root	1m 6s
Build and test bazel-osx:go	1m 13s
Build and test bazel-osx:java	3m 17s
Build and test bazel-osx:research	1m 14s
Build and test bazel-win:root	1m 21s
Build and test bazel-win:java	3m 6s
Build and test bazel-win:research	1m 41s
	30m 3s

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