chore(github): add ionitron to repo

[rwaskiewicz]

Pull request checklist

Please check if your PR fulfills the following requirements:

• Tests for the changes have been added (for bug fixes / features)
• Docs have been reviewed and added / updated if needed (for bug fixes / features)
• Build (npm run build) was run locally and any changes were pushed
• Unit tests (npm test) were run locally and passed

Pull request type

Please check the type of change your PR introduces:

• Bugfix
• Feature
• Refactoring (no functional changes, no api changes)
• Build related changes
• Documentation content changes
• Other (please describe): Adding Ionitron to the repo

What is the current behavior?

There's not Ionitron automation for labels, adding the triage label, etc.

GitHub Issue Number: N/A

What is the new behavior?

this commit adds ionitron to the repository. to start, this
configuration copies the configuration file that exists in the stencil
core repository today.

all labels mentioned in this configuration file have been manually
created in the repo if they did not already exist

Does this introduce a breaking change?

• Yes
• No

Testing

we'll just have to monitor this once it goes live. the repo is relatively small, so I don't think that's too much of an ask

Other information