[cli] silence "method has not been implented on the CLI"-warnings on obvious uneeded methods

[dersphere]

There are some xbmc methods which obviously never will be implemented in the CLI because they are just unneeded. Examples:

WARNING - [xbmcswift2] The setResolvedUrl method has not been implented on the CLI. Your code might not work properly when calling it.
WARNING - [xbmcswift2] The addDirectoryItems method has not been implented on the CLI. Your code might not work properly when calling it.
WARNING - [xbmcswift2] The endOfDirectory method has not been implented on the CLI. Your code might not work properly when calling it.
WARNING - [xbmcswift2] The addSortMethod method has not been implented on the CLI. Your code might not work properly when calling it.