GCP VM Instance Stop charts (#480)

* Added charts for GCP vm-instance-stop and vm-disk-loss experiments

* Removed temp file

* GCP charts updated for gcp-vm-instance-stop; removed vm-disk-loss experiment

* Added experiment image name

* Removed exec keyword, updated chaos interval

* Updated gcp charts messages

* Updated image tag to ci

* Updated experiment name in csv, removed exec

* Added charts for gcp-vm-disk-loss experiment

* Removed gcp-vm-disk-loss charts

* Removed experiment inputs and tagged the experiment image to ci

* Removed jobCleanupPolicy

* updated experiment description

* updated chartserviceversion description

* removed patch verb

Co-authored-by: Udit Gaurav <35391335+uditgaurav@users.noreply.github.com>
Co-authored-by: Shubham Chaudhary <shubham@chaosnative.com>

charts/gcp/gcp.chartserviceversion.yaml

@@ -0,0 +1,34 @@
+apiVersion: litmuchaos.io/v1alpha1
+kind: ChartServiceVersion
+metadata:
+  name: gcp 
+  version: 0.1.0
+  annotations:
+    categories: gcp
+spec:
+  displayName: gcp chaos
+  categoryDescription: >
+    GCP contains chaos to disrupt state of gcp resources running part of the gcp services
+  experiments:
+  - gcp-vm-instance-stop
+  keywords: 
+    - "pods" 
+    - "kubernetes" 
+    - "gcp" 
+  maintainers: 
+    - name: neelanjan00 
+      email: neelanjan@chaosnative.com
+  minKubeVersion: 1.12.0 
+  provider: 
+    name: ChaosNative
+  links: 
+    - name: GCP Website
+      url: https://cloud.google.com/
+    - name: Documentation 
+      url: https://docs.litmuschaos.io/docs/getstarted/ 
+    - name: Community Slack
+      url: https://app.slack.com/client/T09NY5SBT/CNXNB0ZTN
+  icon:
+    - url: 
+      mediatype: ""
+  chaosexpcrdlink: https://raw.githubusercontent.com/litmuschaos/chaos-charts/master/charts/gcp/experiments.yaml