Set up BIT to facilitate contributing and testing

[Ullidtz]

Is your feature request related to a problem? Please describe.
We would like to encourage more people to contribute to core repositories either with new features or by refactoring/imporving existing features.

Describe the solution you'd like
The idea is that by using BIT, developers will be able to modify the feature they are using directly in the code where they are using it and test the effect of the changes. Then once the changes are completed they can push the changes back to the repository.