Check if there is an error response when getting rating from trakt server, hopefully can prevent re-sending all user ratings from local libraries.
Added Search GUI, includes Search Types for Movies, Shows, Episodes, People and Users.
Added support to Follow user from 'User' search results.

Updated Network GUI 'Search' to load GUISearchUsers with loading 'SearchTerm' as LoadingParameter.

Clear SearchTerm when exiting back from main Search GUI, persist it only when entering search results so that it's restored on return.