Add the 'Brute force protection' checkbox to the UI

DocImpact
Partial-Bug: #1563721
Change-Id: I7bbd96fb43fcd6030621671d0056f56324f50956
Signed-off-by: Maksim Malchuk <mmalchuk@mirantis.com>

nailgun/nailgun/fixtures/openstack.yaml

@@ -1381,6 +1381,15 @@
             restrictions:
               - condition: "settings:ssh.security_enabled.value == false"
                 action: "hide"
+          brute_force_protection:
+            value: false
+            label: "Brute force protection"
+            description: "When enabled, the access from all networks (except the provided ones) will be granted, but the networks will be checked against the brute force attack."
+            weight: 30
+            type: "checkbox"
+            restrictions:
+              - condition: "settings:ssh.security_enabled.value == false"
+                action: "hide"
         kernel_params:
           metadata:
             label: "Kernel parameters"

nailgun/nailgun/statistics/fuel_statistics/installation_info.py

@@ -160,6 +160,8 @@ class InstallationInfo(object):
                       'security_enabled', bool),
         WhiteListRule(('ssh', 'security_networks', 'value'),
                       'security_networks', None),
+        WhiteListRule(('ssh', 'brute_force_protection', 'value'),
+                      'brute_force_protection', bool),
     )
 
     vmware_attributes_white_list = (