Add Ability to Silence Crystal Cell Hum

[romeara]

I play with others who are noise sensitive, and the constant hum from the crystal cell is causing issues. Please add a means to disable that sound (maybe a muffler machine upgrade block that can be attached, like the insulation operates for the hearth coil?)

[romeara]

For those able to install Extreme Sound Muffler, the specific sound is block.crystal_cell.loop:embers