Currently it's not easy to use non-USA pumps with Mmeowlink and OpenAPS.

At the moment, I do this manually in my loop, by running mmtune.py --port ${PORT} --serial FIXME --radio_locale WW outside of OpenAPS. Some hacks have been proposed to deal with this, inclduing openaps/oref0#226 (comment)

Additionally, some WW pumps require this process, since the default subg radio settings may need some adjustment: https://github.com/oskarpearson/mmeowlink/wiki/Non-USA-pump-settings

It would be better if:

• It was easy to add a new device with 'openaps device add pump mmeowlink' and specify the radio locale at the same time.
• The radio locale would be stored in the pump.ini, and the radio would automatically use it.
• It was easy to integrate custom radio settings into the mmeowlink tool, since radios vary from user to user.
• We should default to the parameters in https://github.com/oskarpearson/mmeowlink/wiki/Non-USA-pump-settings as the majority of WW users need them. (This may need to happen as a Pull Request for https://github.com/ps2/subg_rfspy instead)