basic metadata support #235

Job	Run time
Generate the SWIG wrappers	1m 20s
Build ASAN instrumented version / Build ASAN on ubuntu-latest	4m 58s
Build code coverage instrumented version / Build codecov on ubuntu-latest	6m 40s
Build native / Build native on macos-latest	3m 36s
Build native / Build native on macos-latest w/o libtiff	4m 29s
Build native / Build native on ubuntu-latest w/o libtiff	5m 9s
Build native / Build native on ubuntu-latest	5m 11s
Build native / Build native on windows-latest w/o libtiff	10m 33s
Build native / Build native on windows-latest	7m 17s
Build WASM / Build wasm on ubuntu-latest w/o libtiff w/o proj.db	8m 26s
Build WASM / Build wasm on ubuntu-latest w/o proj.db	8m 30s
Build WASM / Build wasm on ubuntu-latest w/o libtiff	8m 23s
Build WASM / Build wasm on ubuntu-latest	8m 45s
Run code coverage	1m 10s
Run asan	1m 11s
Test ubuntu-latest	1m 46s
Test ubuntu-latest w/o libtiff	36s
Test ubuntu-latest w/o proj.db	36s
Test ubuntu-latest w/o libtiff w/o proj.db	37s
Test macos-latest	39s
Test macos-latest w/o libtiff	44s
Test macos-latest w/o proj.db	34s
Test macos-latest w/o libtiff w/o proj.db	52s
Test windows-latest	1m 21s
Test windows-latest w/o libtiff	2m 29s
Test windows-latest w/o proj.db	1m 42s
Test windows-latest w/o libtiff w/o proj.db	2m 4s
	1h 39m 38s

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