Changes

 - `KubeArmorPolicy` metadata data type is changed from map[string]string to metav1.ObjectMeta. Reference pkg - "k8s.io/apimachinery/pkg/apis/meta/v1" , struct - "ObjectMeta"
 - Added a new tag 'annotation' in policy yaml of metadata with map[string]string
       - app.accuknox.com/description : <description>
       - app.accuknox.com/tldr : <tldr>
 - Generated a hardening policy yaml with updated annotation

Signed-off-by: aloksharma20 <alokkumar.sharma@accuknox.com>