refactoring: Breakdown fission-all chart into components and removed fission-core (#2224)

* Sync a few files from fission-all to fission-core chart
* Change values in fission-all chart
We keep the following components by default disabled now, which were enabled by default earlier.

1. nats - Fission Nats integration
2. influxdb - Influxdb and logger component
3. prometheus - Prometheus disabled by default
4. canaryDeployment - Disabled by default

This change reduces the need for a fission-core chart and we can configure
values of fission-all so that it can provide the behaviour of fission-all
as well as fission-core.

* Remove fission-core chart
* Add README in the fission-all chart
* Rename clusterrolebinding fission-crd to fission-cr-admin
* Add icon and sources in helm chart

Signed-off-by: Sanket Sudake <sanketsudake@gmail.com>

charts/fission-all/templates/controller/svc.yaml

@@ -0,0 +1,18 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: controller
+  labels:
+    svc: controller
+    application: fission-api
+    chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
+spec:
+  type: {{ .Values.serviceType }}
+  ports:
+  - port: 80
+    targetPort: 8888
+{{- if eq .Values.serviceType "NodePort" }}
+    nodePort: {{ .Values.controllerPort }}
+{{- end }}
+  selector:
+    svc: controller