added support for includes

git-svn-id: svn://svn.code.sf.net/p/magicseteditor/code/trunk@31 0fc631ac-6414-0410-93d0-97cfa31319b6

src/util/io/package_manager.hpp

@@ -53,6 +53,9 @@ class PackageManager {
 	 */
 	String findFirst(const String& pattern);
 	
+	// Open a file from a package, with a name encoded as "package/file"
+	InputStreamP openFileFromPackage(const String& name);
+	
 	/// Empty the list of packages.
 	/** This function MUST be called before the program terminates, otherwise
 	 *  we could get into fights with pool allocators used by ScriptValues */