Switch from ThirdPartyResources to CustomResourceDefinitions (#381)

Switch Fission's storage over to the new CustomResourceDefinitions, from the deprecated ThirdPartyResources. This allows us to be compatible with Kubernets 1.8 and onwards.

This also adds a CLI tool for dumping state from an old fission version and restoring state into new CRDs.

The storage service is unaffected by this change.

router/router.go

@@ -49,8 +49,8 @@ import (
 	"github.com/gorilla/handlers"
 	"github.com/gorilla/mux"
 
+	"github.com/fission/fission/crd"
 	poolmgrClient "github.com/fission/fission/poolmgr/client"
-	"github.com/fission/fission/tpr"
 )
 
 // request url ---[mux]---> Function(name,uid) ----[fmap]----> k8s service url
@@ -73,11 +73,11 @@ func serve(port int, httpTriggerSet *HTTPTriggerSet) {
 func Start(port int, poolmgrUrl string) {
 	fmap := makeFunctionServiceMap(time.Minute)
 
-	fissionClient, _, err := tpr.MakeFissionClient()
+	fissionClient, _, _, err := crd.MakeFissionClient()
 	if err != nil {
 		log.Fatalf("Error connecting to kubernetes API: %v", err)
 	}
-	restClient := fissionClient.GetTprClient()
+	restClient := fissionClient.GetCrdClient()
 	poolmgr := poolmgrClient.MakeClient(poolmgrUrl)
 	resolver := makeFunctionReferenceResolver(fissionClient)
 	resolver.Sync(restClient)