Newly Created Sink algorithm (Phoenix)

This merge request introduces a new interface called Phoenix sink, whose purpose is to gather event data in .json format from the Rec/RecAlgs project (see my merge request on Rec project for more details) and glue them and output them in an appropriate .json format that is understandable by the Phoenix Framework and the LHCbWebEventdisplay.

It's purpose is to be generic and not to be modified any further after the merge by the users who simply want to easily add new event data to the Web Display. That is to be done in the Rec project by simply creating a new Algorithm for that very purpose.

(Extensive Documentation to be added)