Move VyOS charm from descriptor repo to here

Signed-off-by: Philip Joseph <philip.joseph@riftio.com>
diff --git a/builds/VyOS-proxy/bin/layer_option b/builds/VyOS-proxy/bin/layer_option
new file mode 100755
index 0000000..90dc400
--- /dev/null
+++ b/builds/VyOS-proxy/bin/layer_option
@@ -0,0 +1,24 @@
+#!/usr/bin/env python3
+
+import sys
+sys.path.append('lib')
+
+import argparse
+from charms.layer import options
+
+
+parser = argparse.ArgumentParser(description='Access layer options.')
+parser.add_argument('section',
+                    help='the section, or layer, the option is from')
+parser.add_argument('option',
+                    help='the option to access')
+
+args = parser.parse_args()
+value = options(args.section).get(args.option, '')
+if isinstance(value, bool):
+    sys.exit(0 if value else 1)
+elif isinstance(value, list):
+    for val in value:
+        print(val)
+else:
+    print(value)