The runtime API implemented version is not explicitly shown in metadata,
so here we add it to improve developer experience.
We need to bump `frame-metadata` and `merkleized-metadata` to allow this
new feature.

This closes #7352 .

_Refactor_: also changing all the occurrences of `ViewFunctionMethod` to
just `ViewFunction` for metadata types.

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Co-authored-by: cmd[bot] <41898282+github-actions[bot]@users.noreply.github.com>