* allow usage of NiPoint3 and NiQuaternion in constexpr context
* removed .cpp files entirely
* moving circular dependency circumvention stuff to an .inl file
* real world usage!!!!!
* reverting weird branch cross-pollination
* removing more weird branch cross-pollination
* remove comment
* added inverse header guard to inl file
* Update NiPoint3.inl
* trying different constructor syntax
* reorganize into .inl files for readability
* uncomment include
* moved non-constexpr definitions to cpp file
* moved static definitions back to inl files
* testing fix
* moved constants into seperate namespace
* Undo change in build-and-test.yml
* nodiscard
