WFLY-2080: Moves all functionality to save context, i.e. the ContextHand...

...leFactories, into each ConcurrentContext instance. The context is saved in a context handle that chains each factory's individual context handle, and which manages serialization tasks. Each ConcurrentContext is installed into MSC, to support deserialization. Two additional context handle factories are added to, one that builds handles which add Other EE Setup Actions to the invocation context, and another one that rollbacks any started transaction left open.

After this PR all 203 TCK tests wrt JSR 236 pass, including a few that are being challenged