Directory restructure to add scenarios and experiments (#559)

* Updated dir struture with scenarios and experiments dir

Signed-off-by: Amit Kumar Das <amit.das@harness.io>

* Added icons

Signed-off-by: Amit Kumar Das <amit.das@harness.io>

experiments/coredns/coredns-pod-delete/engine.yaml

@@ -0,0 +1,30 @@
+apiVersion: litmuschaos.io/v1alpha1
+kind: ChaosEngine
+metadata:
+  name: engine-coredns
+  namespace: kube-system
+spec:
+  appinfo:
+    appns: 'kube-system'
+    applabel: 'k8s-app=kube-dns'
+    appkind: 'deployment'
+  # It can be active/stop
+  engineState: 'active'
+  #ex. values: ns1:name=percona,ns2:run=nginx 
+  auxiliaryAppInfo: ''
+  chaosServiceAccount: coredns-pod-delete-sa
+  experiments:
+    - name: coredns-pod-delete
+      spec:
+        components:
+          env: 
+            # set chaos duration (in sec) as desired
+            - name: TOTAL_CHAOS_DURATION
+              value: '30'
+        
+            # set chaos interval (in sec) as desired
+            - name: CHAOS_INTERVAL
+              value: '10'
+
+            - name: CHAOS_NAMESPACE
+              value: 'kube-system'