Implemented option to disable port-security for openstack. Implemented option to specify floating_ip in openstack. Solved 2 bugs in floating_ip implementation for Openstack

Change-Id: I1d6463f9743924dacd93d522f625ecef34b0decf
Signed-off-by: montesmoreno <pablo.montesmoreno@telefonica.com>
diff --git a/openmano_schemas.py b/openmano_schemas.py
index 013234f..a8c92a0 100644
--- a/openmano_schemas.py
+++ b/openmano_schemas.py
@@ -450,7 +450,9 @@
             "bandwidth":bandwidth_schema,
             "vpci":pci_schema,
             "mac_address": mac_schema,
-            "model": {"type":"string", "enum":["virtio","e1000","ne2k_pci","pcnet","rtl8139"]}
+            "model": {"type":"string", "enum":["virtio","e1000","ne2k_pci","pcnet","rtl8139"]},
+            "port-security": {"type" : "boolean"},
+            "floating-ip": {"type" : "boolean"}
         },
         "additionalProperties": False,
         "required": ["name"]