Refactor DS18x Component for API v2

[brentru]

• Implement new ds18x20 component classes
  • Add controller class for ds18x20
  • Add hardware class for interfacing with the OneWire API and DallasTemperature API
  • Add model class for interfacing with the compiled protocol buffer .pb.h file - ds18x20.proto
• Add interfaces with top-level application encoder/decoder
• Functionally test and verify all ds18x20.proto messages
• Doxygenify the new components
• Refactor Hardware class to use OneWireNG instead of DallasTemperature library (resolves Update DS18b20 Component driver to use OneWireNg interface instead of shim #617)

[brentru]

Noting that once #644 is reviewed by @tyeth - we can close this out.