Move CLLocation from User to Device entities

Deprecated Liquid public methods:

* `-(void)identifyUserWithIdentifier:(NSString *)identifier attributes:(NSDictionary *)attributes location:(CLLocation *)location`
* `-(void)setUserLocation:(CLLocation *)location`

New Liquid public methods:

* `-(void)setCurrentLocation:(CLLocation *)location`

Signed-off-by: Miguel M. Almeida <miguelcma@gmail.com>