[New build - EXPERIMENTAL] 21w32a: Event Gate replaces Query

The event gate can now listen to "value" event: they function very much like the old query gate.
For example you can trigger logic when a rotator angle goes below a given threshold.

• All mechanism can be linked to an Event gate.
  
• Vehicle Computer can output Power and Heat Percentage.
  
• Old Query Gate will be migrated to the new gate format. The blueprint must be in .sevo format first!
  

Still WIP:

• Event gate shows mechanism range of values (like on the old query)
  
• Smarter input for percentage
  
• Continuous mode: ie the event gate would produce continuously a value between 0 and 1 like a manual controller.
  
• Event replace hotkey gate.
  

Bugfixes:

• #4070 #4097 #4046 Freeze linked to turrets.
  
• #4091 Prefab PNG preview not exporting.
  
• #4082 Issue with laser and logic.
  
• #4065 Most command are a bit too dark.
  
• #4089 Crash when deleting stacked children entity.
  
• #4052 Heat / Power balance not showing on blueprint load.
  

Thanks for playing!