Use conventional letter case

[adundovi]

Instead of si::M, I would prefer to stick to the original letter case, i.e., si::m. I suppose it is not Rust-style, however, the correct letter case would avoid some clashes of derived and combined units. See the following:

Symbols are case-sensitive, so the meaning of an SI symbol can be changed if you substitute an uppercase letter for a lowercase letter. Correct: mm (for millimetre, which means 1/1000 of a metre) Incorrect: MM or Mm (M is the symbol for the prefix mega-, which means one million; a megametre is a million metres)

[paholg]

I thought about this a lot when creating dimensioned, and settled on Rust style. I am unlikely to change it now unless one can come up with a very compelling case.

You are welcome to rename them in your code.