feat: Update events chart (#220)

* added crds directory for helm 3 compability

* added eventsource-crd for helm2

* updated image tags to newer version, added new property for additionalRules for compability

* updated SA Rules to match installation yaml from events repo

* introduced shortnames to match upstream crds

* updated env var names to match events installation yml from upstream repo

* updated chart and app version

charts/argo-events/Chart.yaml

@@ -1,7 +1,7 @@
 apiVersion: v1
 description: A Helm chart to install Argo-Events in k8s Cluster
 name: argo-events
-version: 0.6.1
+version: 0.7.0
 keywords:
   - argo-events
   - sensor-controller
@@ -11,6 +11,6 @@ sources:
 maintainers:
   - name: VaibhavPage
   - name: magaldima
-appVersion: 0.11
+appVersion: 0.12
 icon: https://raw.githubusercontent.com/argoproj/argo/master/docs/assets/argo.png
 home: https://github.com/argoproj/argo-helm