RFR: forge: add commitMetadata method to HostedRepository

[Robin Westberg]

On Fri, 5 Jun 2020 13:16:46 GMT, Erik Helin <ehelin at openjdk.org> wrote:

> Hi all,
> 
> please review this patch that adds the method `CommitMetadata HostedRepository.commitMetadata(Hash h)`. This is useful
> for getting the metadata for a commit from a `HostedRepository` instance without having to clone it first to a local
> repository.  Testing:
> - [ ] not in this commit, will be part of follow-up patches
> 
> Thanks,
> Erik

Looks good!

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Marked as reviewed by rwestberg (Reviewer).

PR: https://git.openjdk.java.net/skara/pull/642