Support for select Panasonic video switchers

[jstarpl]

• I'm submitting a ...

• bug report
• feature request
• question about the decisions made in the repository
• question about how to use this project

• Summary

Some popular Panasonic switchers (AV-HS410, AV-HS50, AV-UHS500, AV-HS6000) use a very simple, UDP/IP protocol for control. While certain specifics change across various models, main command structure remains the same. In order to be useful for automating TV production using Sofie, the module should support cross-point changes & M/E control (auto takes, cuts, transition pattern and speed control).

• Other information (e.g. detailed explanation, stacktraces, related issues, suggestions how to fix, links for us to have context, eg. StackOverflow, personal fork, etc.)

Panasonic documentation for AV-HS50 control protocol: https://eww.pass.panasonic.co.jp/pro-av/support/dload/hs410_aux202/AV-HS410-AUXP_IP-Protocol-Ver1.3EVol_2.pdf
Panasonic documentation for AV-HS410 control protocol: https://eww.pass.panasonic.co.jp/pro-av/support/dload/hs410_aux202/AV-HS410-AUXP_IP-Protocol-Ver1.3EVol_2.pdf
Panasonic documentation for AV-HS6000 control protocol: https://eww.pass.panasonic.co.jp/pro-av/support/dload/hs6000_3ext/AV-HS6000%20external%20IF_protocol-E.pdf
Bitfocus Companion module: https://github.com/bitfocus/companion-module-panasonic-avhs