Update: Unit tests, fixing minor problems and adding missing functionality.

Update: Unit tests, fixing minor problems and adding missing functionality.

Many of the testfile files have "tests" when they instead should have "test".

The f_print must have a clang specific define passed to work-around a clang problem.

I noticed that I forgot to implement several "returns_data_not" unit test while writing the f_fss unit tests.
Provide these missing unit tests for the f_type_array project unit tests.
This project is my de-facto standard for basing all of my standard data type unit tests and needs to be as correct and up to date as possible.