Use PortAudio-Sharp bindings for easier updates

Use COSFunctions for OS-specific stuff
Add dll directories on startup (could be done in the modules itself, but this way it avoids all trouble)

Vocaluxe/CProgrammHelper.cs

@@ -17,6 +17,8 @@
 
 using System;
 using System.IO;
+using System.Reflection;
+using System.Runtime.InteropServices;
 using System.Security;
 using Microsoft.Win32;
 using Vocaluxe.Base;
@@ -108,5 +110,18 @@ namespace Vocaluxe
             }
             return true;
         }
+
+        public static void Init()
+        {
+#if ARCH_X86
+            string path = "x86";
+#endif
+#if ARCH_X64
+            string path = "x64";
+#endif
+            path = Path.GetDirectoryName(Assembly.GetEntryAssembly().Location) + Path.DirectorySeparatorChar + path;
+            COSFunctions.AddLibrarySearchpath(path);
+            COSFunctions.AddLibrarySearchpath(path + Path.DirectorySeparatorChar + "gstreamer");
+        }
     }
 }