Moved provided context to its own interface.
Added ProvidedContextTrait and also use it in rules actions now.
Create a more generic Rules context trait also for context mapping.
Map context in the Rules action expression.
Added test case for provided cotnext in actions, improved interface docs.
Merge pull request #76 from klausi/action-provided-context-2245045

Issue #2245045 : context/provided context handling for Rules actions