Experimental API Changing

[HCookie]

Add an experimental feature to allow dynamic API changing.

>>> import scores.experimental
>>> from scores.experimental import api as scores_api
>>> with scores.experimental.source('NEWAPI'):
            scores_api.api.continuous # Will be NEWAPI wrapper around said function

This could be used to wrap any of the scores functions with a preprocessing step specific to a certain use case, or connect to another downsteam use case.

[tennlee]

Discussed with the author. Keeping the branch as a useful demonstration of the approach, but no plan to merge at this stage until much later in the roadmap when a number of things are clearer.