Project added.
Added a Video class (represents a video object).
Added Token class (an utility class).

Added a Token class, whose purpose is to get the token associated to a
certain video ID.
Completed the constructor from Video.cs
Initial implementation completed.

Corrections to the URL to which the requests are made. Some tests
perfrormed. Intial implementation is now complete. NOTE: the "Delay" is
not yet working.