Hide Unused Faders

[weskoop]

Most important for when Tracks is less than 8 Total.

• [x] Volume
• [x] Pan
• [x] Sends
• [x] Devices?

All of these will need to update if they are on the display at the time the tracks, sends or devices change.

Devices, we will need to see if the Remote control slot is empty, I haven't looked at this yet, should be doable tho.

[weskoop]

Sends needs some extra love.

• [x] Hide Send Faders on Effects and Main
• [x] Hide Faders completely when there are no Effects Tracks.
• [x] Track Scrolling Not Working right, messing with the Sends list too.. weird.

[weskoop]

Devices needs some extra love as well.

• [x] The Track Select LEDS should only light up when a Remote control exists, right now, seems tied to Track Display, this is wrong.