I made a little research before doing this library and I did find unchained.
Measures is a simpler implementation(it doesn't support compile-time composed
units with exponents and stuff) but not only implementing units from the SI or
the Imperial system but other field-specific units. I know unchained can also
have custom units and theoretically, you can implement them but that complexity
(which is good for many use cases like scientific computing, after all the
unchained project is developed by the SciNim project) is the reason I wanted to
build a simpler library, with a more modular API and depending on the
measurement unit, convenience functions regarding the field.
