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-vm-instance-stop/engine.yaml

@@ -0,0 +1,38 @@
+apiVersion: litmuschaos.io/v1alpha1
+kind: ChaosEngine
+metadata:
+  name: gcp-vm-chaos
+spec:
+  engineState: 'active'
+  chaosServiceAccount: gcp-vm-instance-stop-sa
+  experiments:
+    - name: gcp-vm-instance-stop
+      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: '30'
+            
+            # Instance name of the target vm instance(s)
+            # Multiple instance names can be provided as comma separated values ex: instance1,instance2
+            - name: VM_INSTANCE_NAMES
+              value: ''
+            
+            # GCP project ID to which the vm instances belong
+            - name: GCP_PROJECT_ID
+              value: ''
+
+            # Instance zone(s) of the target vm instance(s)
+            # If more than one instance is targetted, provide zone for each in the order of their 
+            # respective instance name in VM_INSTANCE_NAME as comma separated values ex: zone1,zone2
+            - name: INSTANCE_ZONES
+              value: ''
+
+            # enable it if the target instance is a part of self-managed auto scaling group.
+            - name: AUTO_SCALING_GROUP
+              value: 'disable'