add h3 extension #75

Job	Run time
prepare	9s
build / Generate matrix	27s
build / Windows (windows_amd64, x64-windows-static-md)	19m 31s
build / Windows (windows_amd64_rtools, x64-mingw-static)	40m 35s
build / DuckDB-Wasm (wasm_mvp, wasm32-emscripten)	2m 23s
build / Linux (linux_amd64, ubuntu:18.04, x64-linux)	16m 56s
build / DuckDB-Wasm (wasm_eh, wasm32-emscripten)	2m 11s
build / Linux (linux_amd64_gcc4, quay.io/pypa/manylinux2014_x86_64, x64-linux)	13m 32s
build / MacOS (osx_amd64, x86_64, x64-osx)	3m 38s
build / DuckDB-Wasm (wasm_threads, wasm32-emscripten)	2m 8s
build / MacOS (osx_arm64, arm64, arm64-osx)	3m 19s
build / Linux (linux_arm64, ubuntu:18.04, arm64-linux)	19m 10s
deploy / Generate matrix	23s
deploy / Deploy (linux_amd64)	35s
deploy / Deploy (linux_amd64_gcc4)	35s
deploy / Deploy (linux_arm64)	33s
deploy / Deploy (osx_amd64)	31s
deploy / Deploy (osx_arm64)	34s
deploy / Deploy (windows_amd64)	33s
deploy / Deploy (windows_amd64_rtools)	32s
deploy / Deploy (wasm_mvp)	30s
deploy / Deploy (wasm_eh)	36s
deploy / Deploy (wasm_threads)	32s
	2h 9m 53s

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