Sigmadsp

**Full Changelog**: https://github.com/elagil/sigmadsp/compare/1.4.0...1.5.1

Added
- a retry mechanism for the loading parameter file on startup
- more useful logging output
- poetry build
Fixed
- crashes, when optional configuration parameters were missing

**Full Changelog**: https://github.com/elagil/sigmadsp/compare/1.3.4...1.4.0

Added
- DSP pin definitions to the configuration file
- hardware pin control (e.g. for a DSP hard reset)

**Full Changelog**: https://github.com/elagil/sigmadsp/compare/1.3.3...1.3.4

What's Changed
* Implemented multiprocessing.Pipe, instead of Queue by elagil in https://github.com/elagil/sigmadsp/pull/3
* Internal changes and simplifications, which do not have any impact on functionality.

Added
- initial release, upon which to base this changelog

**Full Changelog**: https://github.com/elagil/sigmadsp/compare/1.3.2...1.3.3

**Full Changelog**: https://github.com/elagil/sigmadsp/commits/1.3.2