Lets leave PL type checking enabled, as the type check on the 'auth'

Lets leave PL type checking enabled, as the type check on the 'auth'
argument sets up self.caller that is needed in some of the calls.

Tests of AddInterface & DeleteNodeNetwork and vice versa function
correctly.  Still need to validate the same for the others such as
SliceAttributes & SliceTags, NodeNetworkSettings & InterfaceTag, and
*Type calls.