fixed 2.0.0-alpha.1 with const generics instead of typenum

fixed is a crate providing fixed-point numbers.

https://docs.rs/fixed/2.0.0-alpha.1/fixed/

This is an alpha release of the new major version 2.0.0 that makes use of const generics instead of the typenum crate. This version requires the nightly compiler with the generic_const_exprs feature enabled. The stable version 2.0.0 itself will not be released before the generic_const_exprs feature is stabilized.