update and verify netparse

Add script to verify that net.ParseIP and net.ParseCIDR are
not being used.

Add another script to automatically replace those functions
for the ones forked in k8s.io/utils/net

hack/tools/tools.go

@@ -20,6 +20,7 @@ package tools
 
 import (
 	// linting tools
+	_ "github.com/aojea/sloppy-netparser"
 	_ "github.com/client9/misspell/cmd/misspell"
 	_ "github.com/golangci/golangci-lint/cmd/golangci-lint"
 	_ "github.com/google/go-flow-levee/cmd/levee"