amadeus: Add missing compressor effect from REV11 (#4010)

* amadeus: Add missing compressor effect from REV11

This was in my reversing notes but seems I completely forgot to
implement it

Also took the opportunity to simplify the Limiter effect a bit.

* Remove some outdated comment

* Address gdkchan's comments

Ryujinx.Audio/Renderer/Server/CommandBuffer.cs

@@ -469,6 +469,18 @@ namespace Ryujinx.Audio.Renderer.Server
             }
         }
 
+        public void GenerateCompressorEffect(uint bufferOffset, CompressorParameter parameter, Memory<CompressorState> state, bool isEnabled, int nodeId)
+        {
+            if (parameter.IsChannelCountValid())
+            {
+                CompressorCommand command = new CompressorCommand(bufferOffset, parameter, state, isEnabled, nodeId);
+
+                command.EstimatedProcessingTime = _commandProcessingTimeEstimator.Estimate(command);
+
+                AddCommand(command);
+            }
+        }
+
         /// <summary>
         /// Generate a new <see cref="VolumeCommand"/>.
         /// </summary>