lowpass-filter 0.3.0

This is a `no_std` Rust library for simple digital low pass filters. You can use it for example to get the low frequencies from a song.

Documentation

# Changelog for `lowpass-filter`

## v0.3.0 (2021-11-15)
- MSRV is 1.56.1
- crate uses Rust edition 2021
- improved and simplified lib structure
- library function has more sensible input type (f32)