Augment CONSERT Pipeline with conflict detection and resolution steps

### Why
The CONSERT Engine processing pipeline defines steps for conflict/constraint detection and resolution between two ContextAssertions prior to insertion in the DROOLS knowledge base.
These steps are currently missing from the implementation

### What
- the AtomicAction for `insertAtomicEvent` and `insertDerivedEvent` are updated to a flow including conflict detection and resolution steps, prior to deleting old event with its extension/derivation
- Conflict detection is enabled via a DROOLS query that identifies the _type_ of the conflict and the FactHandles of the conflicting assertions.
- Conflict resolution is implemented by default via specific rules for each conflict _type_

### Notes