Replaced C++/CLR version of Monkey's Audio plugin with a .dll and a PInvoke plugin

CUETools.Codecs.MACLib/DecoderSettings.cs

@@ -0,0 +1,39 @@
+using Newtonsoft.Json;
+using System;
+using System.ComponentModel;
+using System.Runtime.InteropServices;
+
+namespace CUETools.Codecs.MACLib
+{
+    [JsonObject(MemberSerialization.OptIn)]
+    public class DecoderSettings : IAudioDecoderSettings
+    {
+        #region IAudioDecoderSettings implementation
+        [Browsable(false)]
+        public string Extension => "ape";
+
+        [Browsable(false)]
+        public string Name => "MACLib";
+
+        [Browsable(false)]
+        public Type DecoderType => typeof(AudioDecoder);
+
+        [Browsable(false)]
+        public int Priority => 1;
+
+        public IAudioDecoderSettings Clone()
+        {
+            return MemberwiseClone() as IAudioDecoderSettings;
+        }
+        #endregion
+
+        public DecoderSettings()
+        {
+            this.Init();
+        }
+
+        [DisplayName("Version")]
+        [Description("Library version")]
+        public string Version => Marshal.PtrToStringAnsi(MACLibDll.GetVersionString());
+    }
+}