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-memory-hog-exec/pod-memory-hog-exec.chartserviceversion.yaml

@@ -0,0 +1,51 @@
+apiVersion: litmuchaos.io/v1alpha1
+kind: ChartServiceVersion
+metadata:
+  createdAt: 2020-04-10T10:28:08Z
+  name: pod-memory-hog-exec
+  version: 0.1.4
+  annotations:
+    categories: Kubernetes
+    vendor: CNCF
+    support: https://slack.kubernetes.io/
+spec:
+  displayName: pod-memory-hog-exec
+  categoryDescription: |
+    pod-memory-hog-exec contains chaos to consume Memory resouces of specified containers in Kubernetes pods.  
+    - Consumes the memory specified by executing a dd command against special files /dev/zero(input) and /dev/null(output)
+    - The application pod should be healthy once chaos is stopped. Expectation is that service-requests should be served despite chaos.
+  keywords:
+    - Kubernetes
+    - K8S
+    - Memory
+    - Pod
+    - Exec 
+    - Stress 
+  platforms:
+    - GKE
+    - Packet(Kubeadm)
+    - Minikube
+    - EKS
+    - AKS
+    - OpenShift(OKD)
+  maturity: alpha
+  maintainers:
+    - name: Udit Gaurav
+      email: udit@chaosnative.com
+  minKubeVersion: 1.12.0
+  provider:
+    name: ChaosNative
+  labels:
+    app.kubernetes.io/component: chartserviceversion
+    app.kubernetes.io/version: latest
+  links:
+    - name: Source Code
+      url: https://github.com/litmuschaos/litmus-go/tree/master/experiments/generic/pod-memory-hog-exec
+    - name: Documentation
+      url: https://litmuschaos.github.io/litmus/experiments/categories/pods/pod-memory-hog-exec/
+    - name: Video
+      url: https://www.youtube.com/watch?v=HuAXg8W5Tzo 
+  icon:
+    - base64data: ""
+      mediatype: ""
+  chaosexpcrdlink: https://raw.githubusercontent.com/litmuschaos/chaos-charts/master/charts/generic/pod-memory-hog-exec/experiment.yaml