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/generic/pod-delete/engine_nginx_getstarted.yaml

@@ -0,0 +1,37 @@
+apiVersion: litmuschaos.io/v1alpha1
+kind: ChaosEngine
+metadata:
+  name: nginx-chaos
+  namespace: nginx
+spec:
+  appinfo:
+    appns: 'nginx'
+    applabel: 'app=nginx'
+    appkind: 'deployment'
+  # It can be active/stop
+  engineState: 'active'
+  #ex. values: ns1:name=percona,ns2:run=nginx
+  auxiliaryAppInfo: ''
+  chaosServiceAccount: pod-delete-sa
+  # It can be delete/retain
+  jobCleanUpPolicy: 'delete'
+  experiments:
+    - name: 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'
+              
+            # pod failures without '--force' & default terminationGracePeriodSeconds
+            - name: FORCE
+              value: 'false'
+
+             ## percentage of total pods to target
+            - name: PODS_AFFECTED_PERC
+              value: ''