Initial s390-tools-2.0.0 import

This commit is based on the s390-tools-1.39.0 version.

Changes on top of s390-tools-1.39.0:

 - Add MIT license to all source files
 - Add LICENSE file
 - Transform REAMDE to README.md (markdown)
 - Add AUTHORS.md file
 - Add CONTRIBUTING.md file
 - Move changelog from README to CHANGELOG.md file

Reviewed-by: Stefan Haberland <sth@linux.vnet.ibm.com>
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>

zdev/include/net.h

@@ -0,0 +1,22 @@
+/*
+ * zdev - Modify and display the persistent configuration of devices
+ *
+ * Copyright IBM Corp. 2016, 2017
+ *
+ * s390-tools is free software; you can redistribute it and/or modify
+ * it under the terms of the MIT license. See LICENSE for details.
+ */
+
+#ifndef NET_H
+#define NET_H
+
+#include <stdbool.h>
+
+struct util_list;
+struct devnode;
+
+bool net_add_linked_devnodes(struct util_list *, struct devnode *);
+bool net_add_vlan_base(struct util_list *, struct devnode *);
+bool net_add_bonding_base(struct util_list *, struct devnode *);
+
+#endif /* NET_H */