Create libraries based on external unmanaged directories (#147)

* Library management is now complete

* Library functions complete

* Added default platform support

gaseous-tools/Common.cs

@@ -104,6 +104,12 @@ namespace gaseous_tools
 				".DS_STORE",
 				"desktop.ini"
 			};
+		
+		public static string NormalizePath(string path)
+		{
+			return Path.GetFullPath(new Uri(path).LocalPath)
+					.TrimEnd(Path.DirectorySeparatorChar, Path.AltDirectorySeparatorChar);
+		}
     }
 }