Revert "(CLOUD-1640) Remove package resource for kubernetes-cni (#53)"

This reverts commit fe5d286.

Author: scotty-c

manifests/packages.pp

@@ -37,6 +37,10 @@
 
     default: { notify {"The OS family ${::os_family} is not supported by this module":} }
     }
+
+    package { 'kubernetes-cni':
+      ensure => $cni_version,
+    }
   }
 
   elsif $container_runtime == 'cri_containerd' {

spec/classes/packages_spec.rb

@@ -14,5 +14,6 @@
     it { should contain_package('docker-engine').with_ensure('1.12.0-0~xenial')}
     it { should contain_package('kubelet').with_ensure('1.7.3-01')}
     it { should contain_package('kubectl').with_ensure('1.7.3-01')}
+    it { should contain_package('kubernetes-cni').with_ensure('0.5.1-00')}
   end
 end