add helm operator sdk and gateway helm chart

Signed-off-by: Roland.Ma <rolandma@yunify.com>

config/crds/gateway.kubesphere.io_gateways.yaml

@@ -0,0 +1,92 @@
+
+---
+apiVersion: apiextensions.k8s.io/v1
+kind: CustomResourceDefinition
+metadata:
+  annotations:
+    controller-gen.kubebuilder.io/version: (devel)
+  creationTimestamp: null
+  name: gateways.gateway.kubesphere.io
+spec:
+  group: gateway.kubesphere.io
+  names:
+    kind: Gateway
+    listKind: GatewayList
+    plural: gateways
+    singular: gateway
+  scope: Namespaced
+  versions:
+  - name: v1alpha1
+    schema:
+      openAPIV3Schema:
+        description: Gateway is the Schema for the gateways API
+        properties:
+          apiVersion:
+            description: 'APIVersion defines the versioned schema of this representation
+              of an object. Servers should convert recognized schemas to the latest
+              internal value, and may reject unrecognized values. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources'
+            type: string
+          kind:
+            description: 'Kind is a string value representing the REST resource this
+              object represents. Servers may infer this from the endpoint the client
+              submits requests to. Cannot be updated. In CamelCase. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds'
+            type: string
+          metadata:
+            type: object
+          spec:
+            description: GatewaySpec defines the desired state of Gateway
+            properties:
+              controller:
+                properties:
+                  annotations:
+                    additionalProperties:
+                      type: string
+                    type: object
+                  replicas:
+                    format: int32
+                    type: integer
+                  scope:
+                    properties:
+                      enabled:
+                        type: boolean
+                      namespace:
+                        type: string
+                    type: object
+                type: object
+              deployment:
+                properties:
+                  annotations:
+                    additionalProperties:
+                      type: string
+                    type: object
+                  replicas:
+                    format: int32
+                    type: integer
+                type: object
+              service:
+                properties:
+                  annotations:
+                    additionalProperties:
+                      type: string
+                    type: object
+                  type:
+                    description: Service Type string describes ingress methods for
+                      a service
+                    type: string
+                type: object
+            type: object
+          status:
+            type: object
+            x-kubernetes-embedded-resource: true
+            x-kubernetes-preserve-unknown-fields: true
+        type: object
+    served: true
+    storage: true
+    subresources:
+      status: {}
+status:
+  acceptedNames:
+    kind: ""
+    plural: ""
+  conditions: []
+  storedVersions: []