This marks completion of the arbitrary type field feature

Other changes:
Tweaked addNewParameter() in order for the IDs to be arbitrary (insertion
of already existing ID test incoming) according to suggestion by @kongr45gpen

Suggested by @xlxs41

Also update some of the tests

Also update some of the tests

Need to fix linker errors. Also updated documentation.

As suggested by clang-tidy

in order to make construction and adding more natural