YouTube Service Implementation

In this PR:

Implemented YouTube provider service that wraps:
    - YouTube Player Service
    - YouTube Search Service

Added `_.lodash`

Please review :eyes: @alexmckenley @malucky @ssalazars
:tropical_drink: I prefer `playerLoaded` to `isPlayerLoaded` for the variable name, I think it makes the code easier to read, because you can read it like a sentence.