created stubs for predicate test st. the last three tests regard
toString and Equals
The toString method has been tested for the predicate class!
Updating the commentary of predicateTest
PredicateTest is finished up with the final toString modifications.
Since Environment is based off of PredicateReader, I have decided to
make a test suite for PR next
Added in some comments while 'casing the joint' about the Predicate
Reader
Asserted that the 'name' constructor works for the PredicateReader
Made sure that the PredicateReader copy constructor works, as far as the
Entity is concerned.