Radio TGUI backend Tidy-up & Adds Listening Devices

[realforest2001]

About the pull request

This PR adds listening devices, disguisable objects that can transmit nearby speech over a radio channel, or in a shortwave-burst like handheld radios. Four exist on the USS Almayer, two for the MPs and two for the CL.

I have also gone through the TGUI files to fix missing or incorrect radio frequency checks regarding the displayed active frequency on radios, along with adding the channel colours to said UI.

Explain why it's good for the game

Testing Photographs and Procedure

Screenshots & Videos

Put screenshots and videos here with an empty line between the screenshots and the <details> tags.

Changelog

🆑
add: Added disguisable listening bugs/devices. MPs have two outside CMP office, the CL has two in their bedroom.
fix: Fixes incorrect frequencies being used to display channel names on radios.
fix: Radios and tape recorders placed on tables or placed inside webbing can now hear speech again.
/:cl:

[ihatethisengine]

Can you remove LSTN devices from "ghost radio"? If I wanted to read non-local chat as an observer, I'd turn the "ghost ears" setting on.