Adds the ProviderException NotAnInvokableException

Indicates that an invoked resource is not invokable
Mapping to http error code currently missing

Change-Id: Ib9037491590993e5caf68e2312ce79e96c009927
Signed-off-by: Maximilian Conradi <maximilian.conradi@iese.fraunhofer.de>
2 files changed