Add SplitHTTP Transport (#3412)

transport/internet/splithttp/errors.generated.go

@@ -0,0 +1,9 @@
+package splithttp
+
+import "github.com/xtls/xray-core/common/errors"
+
+type errPathObjHolder struct{}
+
+func newError(values ...interface{}) *errors.Error {
+	return errors.New(values...).WithPathObj(errPathObjHolder{})
+}