Cuetools.Converter.exe: support for --decoder-option parameter.

Implemented "Stream" option in BDLPCM Reader to make it possible to select
the right stream in m2ts file.

CUETools.Codecs/AudioDecoderSettings.cs

@@ -0,0 +1,39 @@
+using System;
+using System.ComponentModel;
+using System.Collections.Generic;
+using System.Xml.Serialization;
+using System.Text;
+
+namespace CUETools.Codecs
+{
+    public class AudioDecoderSettings
+    {
+        public AudioDecoderSettings()
+        {
+            // Iterate through each property and call ResetValue()
+            foreach (PropertyDescriptor property in TypeDescriptor.GetProperties(this))
+                property.ResetValue(this);
+        }
+
+        public AudioDecoderSettings Clone()
+        {
+            return this.MemberwiseClone() as AudioDecoderSettings;
+        }
+
+        public bool HasBrowsableAttributes()
+        {
+            bool hasBrowsable = false;
+            foreach (PropertyDescriptor property in TypeDescriptor.GetProperties(this))
+            {
+                bool isBrowsable = true;
+                foreach (var attribute in property.Attributes)
+                {
+                    var browsable = attribute as BrowsableAttribute;
+                    isBrowsable &= browsable == null || browsable.Browsable;
+                }
+                hasBrowsable |= isBrowsable;
+            }
+            return hasBrowsable;
+        }
+    }
+}