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/openebs/openebs-pool-disk-loss/engine.yaml

@@ -0,0 +1,51 @@
+apiVersion: litmuschaos.io/v1alpha1
+kind: ChaosEngine
+metadata:
+  name: pool-chaos
+  namespace: default
+spec:
+  # It can be active/stop
+  engineState: 'active'
+  #ex. values: ns1:name=percona,ns2:run=busybox 
+  auxiliaryAppInfo: ''
+  appinfo:
+    appns: 'default'
+    applabel: 'app=nginx'
+    appkind: 'deployment'
+  chaosServiceAccount: pool-disk-loss-sa
+  experiments:
+    - name: openebs-pool-disk-loss
+      spec:
+        components:
+          env:  
+            # provide the total chaos duration
+            - name: TOTAL_CHAOS_DURATION
+              value: '60'    
+
+            - name: APP_PVC
+              value: 'demo-nginx-claim'
+
+            # GKE and AWS supported
+            - name: CLOUD_PLATFORM
+              value: 'GKE'
+
+            # Enter the project id for gcp only
+            - name: PROJECT_ID 
+              value: 'litmus-demo-123'
+
+            # Enter the node name
+            - name: NODE_NAME
+              value: 'demo-node-123' 
+
+            # Enter the disk name
+            - name: DISK_NAME
+              value: 'demo-disk-123 '  
+            
+            # Enter the device name
+            - name: DEVICE_NAME
+              value: '/dev/sdb'
+
+            # Enter the zone name
+            - name: ZONE_NAME
+              value: 'us-central1-a' 
+