Add PressButan

[Human79]

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Types of Changes

What types of changes does your PR introduce? Put an x in all boxes that apply

• New addition to list
• Fixing bug in existing item in list
• Removing item from list
• Changing structure (organization) of list

Proposed Changes

Describe each of your changes here to communicate to the maintainers why we should accept this pull request.

1. If you're adding something to the list, be sure to explain why it should be added.
   PressButan is a a really simple daemon program that lets you use return and/or enter to open icons in the Finder, and also use the delete or forward delete keys to delete items.

PR Checklist

• I have read the CONTRIBUTING guide
• I have explained why this PR is important
• I have added necessary documentation (if appropriate)

Further Comments

If this is a relatively large or complex change, kick off the discussion by explaining why you chose the solution you did and what alternatives you considered, etc...