Code cleanup; Reader classes renamed to Decoders, Writers to Encoders, every Decoder must have a corresponding Settings class now just like Encoders. UserDefinedEncoders renamed to CommandLineEncoders, etc.

CUETools.Codecs.lame_enc/LAMEEncoderVBRSettings.cs

@@ -0,0 +1,18 @@
+using System;
+using System.ComponentModel;
+
+namespace CUETools.Codecs.LAME
+{
+    public class LAMEEncoderVBRSettings : AudioEncoderSettings
+	{
+        public override Type EncoderType => typeof(LAMEEncoderVBR);
+
+        [DefaultValue(LAMEEncoderVBRProcessingQuality.Normal)]
+		public LAMEEncoderVBRProcessingQuality Quality { get; set; }
+
+		public LAMEEncoderVBRSettings()
+            : base("V9 V8 V7 V6 V5 V4 V3 V2 V1 V0", "V2")
+		{
+		}
+	}
+}