Finished writing first round of YahrtziehtAcceess tests

They all pass, but they need to be set so they will always run in the
specific order
Added Test project for datatypes

Also added skeleton types for Yahrtzieht.Equals
Wrote tests for Yahrtzieht.equals

All tests pass after the neccessary changes where made
Refactored Yahrztieht.Equals

The override is now implemented properly with an object in the method
call
Wrote test for Yahrtzieht.toString
Implemented Yahrtzieht.toString

The test now passes
Added code coverage for testing

Fixed one test that was written wrong
Added class for Phone Type Access

The class only contains STUBS as of now. No tests have been written.
Also added class for local type "Phone Type"