Adds mutation result to mutation hoc. Closes #1967

[andycarrell]

This change adds the result of the a mutation to the HoC. It follows the same pattern as the Query HoC. Closes #1967

Checklist:

• If this PR is a new feature, please reference an issue where a consensus about the design was reached (not necessary for small changes)
• Make sure all of the significant new logic is covered by tests
• If this was a change that affects the external API used in GitHunt-React, update GitHunt-React and post a link to the PR in the discussion.

[apollo-cla]

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[andycarrell]

May be a duplicate of #2953 🤦‍♂

[hwillson]

Awesome, thanks @andycarrell!