feat: optional JSON metadata on tasks, projects, and initiatives (#27) #34

Job	Run time
Check for release	10s
Build aarch64-apple-darwin	5m 49s
Build x86_64-apple-darwin	5m 13s
Build aarch64-unknown-linux-gnu	9m 3s
Build x86_64-unknown-linux-gnu	7m 47s
Build x86_64-pc-windows-msvc	10m 47s
Create Release	9s
	38m 58s

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