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/templates/sensor-crd.yaml

@@ -11,6 +11,8 @@ spec:
     listKind: SensorList
     plural: sensors
     singular: sensor
+    shortNames:
+      - sn
   scope: Namespaced
   version: v1alpha1
 {{- end }}