Sigmadsp

What's Changed
* Refactor: major structural modifications by elagil in https://github.com/elagil/sigmadsp/pull/22
* Test: Added various tests and mockup classes

**Full Changelog**: https://github.com/elagil/sigmadsp/compare/v2.0.0...v2.0.1

What's Changed
* ADAU1701 support by m0n5t3r in https://github.com/elagil/sigmadsp/pull/14

This is a breaking release, configuration files for version v1.x.x are not compatible with v2.x.x.

**Full Changelog**: https://github.com/elagil/sigmadsp/compare/v1.6.1...v2.0.0

What's Changed
* Extend the parameter parser for working with safeload registers, and add the first unit tests by elagil in https://github.com/elagil/sigmadsp/pull/18

**Full Changelog**: https://github.com/elagil/sigmadsp/compare/v1.6.0...v1.6.1

What's Changed
* I2C support by m0n5t3r in https://github.com/elagil/sigmadsp/pull/13

New Contributors
* m0n5t3r made their first contribution in https://github.com/elagil/sigmadsp/pull/13

**Full Changelog**: https://github.com/elagil/sigmadsp/compare/v1.5.4...v1.6.0

**Full Changelog**: https://github.com/elagil/sigmadsp/compare/v1.5.2...v1.5.4

Fixed
- version string

**Full Changelog**: https://github.com/elagil/sigmadsp/compare/v1.5.1...v1.5.2

Fixed
- Incorrect version of grpcio