v0.22.0

What's Changed

• Rain data post-processing
  • Minor bugfixes
  • Improvements
  • Removed old implementation
  • Added set_max()
  • Modified for unit-testing (nvData may not be global)
• Lightning post-processing
  • Minor bugfixes
  • Improvements
  • breaking API change in pastHour()
  • Modified for unit-testing (nvLightning may not be global)
• Implemented unit-testing of RainGauge and Lightning with 100% code coverage
• MQTT examples: Added reset of lightning post-processing

Full Changelog: v0.21.0...v0.22.0