Add support for RF Frequencies

[TheMonzel]

In addition to patch notes, I would like to get a list of used frequencies for microphone and IEM products.
This would be the most basic list of things, when I tour with a small band and everything is packed properly and designed to "plug and play within 2 minutes".

Beside adding frequencies to wireless products in the patch list, a dedicated view of used frequencies (with export to Wireless Workbench) would be awesome.

[cj-vana]

I'm working with one of the developers of SoundBase to see if integration is possible in the future. However, this seems outside of the scope of the project right now especially considering applications/solutions that exist like SoundBase. I do understand the value of this but I don't see a good way of implementing this right now. I'll reopen this issue in the future when we have some better ideas on how to handle this.

[TheMonzel]

Especially with the support of Tech Riders, I would love/need support for this.
All I need is a Frequency Field when „Wireless“ is selected as a source. @cj-vana

[cj-vana]

I think the project is getting to a point where this is needed. Some cool integrations on the way wink wink. I'll work on this shortly.