basic metadata support #227

Job	Run time
Generate the SWIG wrappers	1m 6s
Build ASAN instrumented version / Build ASAN on ubuntu-latest	4m 40s
Build code coverage instrumented version / Build codecov on ubuntu-latest	6m 52s
Build native / Build native on macos-latest w/o libtiff	4m 10s
Build native / Build native on macos-latest	4m 13s
Build native / Build native on ubuntu-latest w/o libtiff	5m 19s
Build native / Build native on ubuntu-latest	5m 0s
Build native / Build native on windows-latest w/o libtiff	8m 42s
Build native / Build native on windows-latest	13m 21s
Build WASM / Build wasm on ubuntu-latest w/o libtiff w/o proj.db	8m 10s
Build WASM / Build wasm on ubuntu-latest w/o proj.db	8m 24s
Build WASM / Build wasm on ubuntu-latest	8m 30s
Build WASM / Build wasm on ubuntu-latest w/o libtiff	8m 16s
Run asan	1m 2s
Run code coverage	59s
Test ubuntu-latest	52s
Test ubuntu-latest w/o libtiff	37s
Test ubuntu-latest w/o proj.db	37s
Test ubuntu-latest w/o libtiff w/o proj.db	34s
Test macos-latest	37s
Test macos-latest w/o libtiff	37s
Test macos-latest w/o proj.db	37s
Test macos-latest w/o libtiff w/o proj.db	44s
Test windows-latest	2m 8s
Test windows-latest w/o libtiff	2m 6s
Test windows-latest w/o proj.db	1m 47s
Test windows-latest w/o libtiff w/o proj.db	1m 46s
	1h 41m 46s

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