Merge branch 'cards' into 'develop'

add cards

See merge request !33

geant/gap_ansible/roles/base_config/templates/routers/nokia/cards.j2

+  {% for card in nokia_cards %}
+  <card xmlns="urn:nokia.com:sros:ns:yang:sr:conf" xmlns:nc="urn:ietf:params:xml:ns:netconf:base:1.0" xmlns:nokia-attr="urn:nokia.com:sros:ns:yang:sr:attributes" alu:operation="replace">
+      <slot-number>{{ card.slot }}</slot-number>
+      <admin-state>enable</admin-state>
+      <card-type>{{ card.card_type }}</card-type>
+  {%     for mda in card.mdas %}
+      <mda>
+          <mda-slot>{{mda.mda_slot}}</mda-slot>
+          <admin-state>enable</admin-state>
+          <mda-type>{{ mda.mda_type }}</mda-type>
+          <level>{{ mda.mda_level }}</level>
+      </mda>
+  {%     endfor %}
+  </card>
+  {% endfor %}