Rename weave-kube to weave-net

Cleans up upgrade to weave 1.82. The original WeaveWorks
daemonset definition uses weave-net name.

roles/kubernetes-apps/network_plugin/weave/tasks/main.yml

@@ -1,9 +1,9 @@
 - name: Weave | Start Resources
   run_once: true
   kube:
-    name: "weave-kube"
+    name: "weave-net"
     kubectl: "{{ bin_dir }}/kubectl"
-    filename: "{{ kube_config_dir }}/weave-kube.yml"
+    filename: "{{ kube_config_dir }}/weave-net.yml"
     resource: "ds"
     namespace: "{{system_namespace}}"
     state: "{{ item | ternary('latest','present') }}"