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/os/include/file_system_session/rpc_object.h

@@ -0,0 +1,53 @@
+/*
+ * \brief  Server-side file-system session interface
+ * \author Norman Feske
+ * \date   2012-04-05
+ */
+
+/*
+ * 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__FILE_SYSTEM_SESSION__SERVER_H_
+#define _INCLUDE__FILE_SYSTEM_SESSION__SERVER_H_
+
+#include <file_system_session/file_system_session.h>
+#include <packet_stream_tx/rpc_object.h>
+#include <base/rpc_server.h>
+
+namespace File_system {
+
+	class Session_rpc_object : public Genode::Rpc_object<Session, Session_rpc_object>
+	{
+		protected:
+
+			Packet_stream_tx::Rpc_object<Tx> _tx;
+
+		public:
+
+			/**
+			 * Constructor
+			 *
+			 * \param tx_ds  dataspace used as communication buffer
+			 *               for the tx packet stream
+			 * \param ep     entry point used for packet-stream channel
+			 */
+			Session_rpc_object(Dataspace_capability tx_ds, Rpc_entrypoint &ep)
+			: _tx(tx_ds, ep) { }
+
+			/**
+			 * Return capability to packet-stream channel
+			 *
+			 * This function is called by the client via an RPC call at session
+			 * construction time.
+			 */
+			Capability<Tx> _tx_cap() { return _tx.cap(); }
+
+			Tx::Sink *tx_sink() { return _tx.sink(); }
+	};
+}
+
+#endif /* _INCLUDE__FILE_SYSTEM_SESSION__SERVER_H_ */