Adds methods to compare Low and High with points.
Improves speed of CountOverlaps(T) in SIT
Merges private method, as it was only used once. Renames node variable.
Create test helper class. Still in its early stages - should be expanded greatly later on.
Starts adding some tests for CountOverlaps for SIT
Adds ForceAdd method for SMS.
Adds the Collapse method requested by SMS.