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/NULL/AudioEncoder.cs

@@ -0,0 +1,35 @@
+using System;
+
+namespace CUETools.Codecs.NULL
+{
+    public class AudioEncoder : IAudioDest
+    {
+        AudioEncoderSettings m_settings;
+
+        public AudioEncoder(string path, AudioEncoderSettings settings)
+        {
+            m_settings = settings;
+        }
+
+        public void Close()
+        {
+        }
+
+        public void Delete()
+        {
+        }
+
+        public long FinalSampleCount
+        {
+            set { }
+        }
+
+        public AudioEncoderSettings Settings => m_settings;
+
+        public void Write(AudioBuffer buff)
+        {
+        }
+
+        public string Path => null;
+    }
+}