Move repositories to 'repos/' subdirectory

This patch changes the top-level directory layout as a preparatory
step for improving the tools for managing 3rd-party source codes.
The rationale is described in the issue referenced below.

Issue #1082

repos/base-linux/include/linux_pd_session/client.h

@@ -0,0 +1,43 @@
+/*
+ * \brief  Client-side PD session interface
+ * \author Norman Feske
+ * \date   2012-08-15
+ */
+
+/*
+ * Copyright (C) 2012-2013 Genode Labs GmbH
+ *
+ * This file is part of the Genode OS framework, which is distributed
+ * under the terms of the GNU General Public License version 2.
+ */
+
+#ifndef _INCLUDE__LINUX_PD_SESSION__CLIENT_H_
+#define _INCLUDE__LINUX_PD_SESSION__CLIENT_H_
+
+#include <linux_pd_session/linux_pd_session.h>
+#include <base/rpc_client.h>
+
+namespace Genode {
+
+	struct Linux_pd_session_client : Rpc_client<Linux_pd_session>
+	{
+		explicit Linux_pd_session_client(Capability<Linux_pd_session> session)
+		: Rpc_client<Linux_pd_session>(session) { }
+
+		int bind_thread(Thread_capability thread) {
+			return call<Rpc_bind_thread>(thread); }
+
+		int assign_parent(Parent_capability parent) {
+			return call<Rpc_assign_parent>(parent); }
+
+
+		/*****************************
+		 * Linux-specific extension **
+		 *****************************/
+
+		void start(Capability<Dataspace> binary) {
+			call<Rpc_start>(binary); }
+	};
+}
+
+#endif /* _INCLUDE__LINUX_PD_SESSION__CLIENT_H_ */