(feat): add hydreon rg15 rainsensor

[Thiemann96]

No description provided.

[mpfeil]

Please install the hydreon library in Dockerfile so tests can run successfully.

https://github.com/sensebox/node-sketch-templater/blob/main/Dockerfile

[mpfeil]

@Thiemann96 could you also add the sensor to the ethernet & lora templates

[Thiemann96]

I added ethernet and lora sketch. I had to add some transformers to the ttn integration which can be seen here sensebox/ttn-osem-integration#51

I cant test that right now, so some feedback would be appreciated

[mpfeil]

@mariopesch @PaulReichmuth could you test the different sketches and provide some feedback please.

[BjoernLuig]

• added rainsensor and solar charger (with rescaling to uint in lora sketch -> TODO for opensensemap)
• included compiler error messages in test script
• moved sds sensor into normal (not "feinstaub") scripts -> TODO for opensensemap, no feinstaub model needed in homev2
• changed "serialPort" to "sdsSerialPort" and "rg15SerialPort" -> TODO for opensensmap
• commented out SPS30 because it was only implemented in the wifi template and should not be part of sensebox home
• testet all changes in docker container

@eric can you check it?