Added updateSingleTransition() Method

Have added a method called updateSingleTransition() where it updates a
single row in the transition table with a single transition. It takes two
Episodes, a source and a target.
Merge branch 'Refactor' of github.com:MaxRobinson/Alt-AIResearch into Refactor
This Has The Test and Method for UpdateSingleTransition

This has the test and the method for UpdateSingleTransition method. This
has not been fully tested yet.