Add metadata V15 with Runtime API support#48

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lexnv merged 19 commits intomainfrom

Mar 30, 2023

Commits on Jan 20, 2023

Commits on Jan 23, 2023

v15: Do not reexport v14 types
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Commits on Jan 30, 2023

v15: Expose metadata as unstable
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Commits on Jan 31, 2023

v15: Exclude trait versioning from metadata
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Commits on Mar 15, 2023

Commits on Mar 29, 2023

Commits on Mar 30, 2023

Copyright: Align copyright with substrate
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