Create new inline PCES Writer component

[lpetrovic05]

Create a new unwired component that writes events to the PCES according to the proposal. This component should be well tested with unit tests but not wired. As much code should be reused from the existing PCES component as possible. There should not be a flush method in this component (existing component has submitFlushRequest() which should not exist in this new component. The return type of writeEvent() should return an event.