Add hook for module to add condition mapping

[Snugug]

Is your feature request related to a problem? Please describe.
I'd like to distribute a condition mapping I have as part of a module instead of as a JSON file to import/export

Describe the solution you'd like
A CUB supplied global hook that I can tap into that will allow me to provide a mapping name and the JSON for conditions, which should then show up in the condition lab mapping type dropdown

Describe alternatives you've considered
I tried using the existing renderConditionLab hook but changing mapTypeChoices doesn't render changes until after someone tries to use the dropdown for the first time. I also didn't see a way to attach an array for the conditions to match the added choice.

[eclarke12]

This makes sense. Will investigate in a future update