Moved functionality to the Helper class

Moved the functionality out of the event receiver into the helper class
to keep the event receiver clean. Also helps when using similar code in
the 2010 version.
Search Likes Feature for SP2010

Search Likes feature for SharePoint 2010. Follows the same pattern as
the 2013 version just adding the items to best bets differs from the
2013 version so they call different methods.