Add an isInBeforeEventState method to the events

[baubakg]

We beleive that an event should make a difference in the system before it starts.

Therefore we need to implement:

• An implementable isInBeforeEventState
• A Test for events (Add a test event method #190 ):.

isInBeforeEvent is called after teardown to check if the event has successfully been torn down.

TestEvent can e called (not compulsary) for an event. it will sequentially run

• isInBeforeEventState
• startEvent
• waitTillFinished
• teardown
• isInBeforeEventState