VOL-2153 move flow_utils.go from voltha-go to voltha-lib-go;
release 2.2.6

Based on voltha-go commit ec6e61b6239b955b6e7623ba3b604e8030154773

Change-Id: Id52f3eb1cb4bcade3f0e42da0129b643fdc5b0f9
diff --git a/vendor/modules.txt b/vendor/modules.txt
index 51eb113..f1cf05a 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -8,6 +8,8 @@
 github.com/boljen/go-bitmap
 # github.com/bsm/sarama-cluster v2.1.15+incompatible
 github.com/bsm/sarama-cluster
+# github.com/cevaris/ordered_map v0.0.0-20190319150403-3adeae072e73
+github.com/cevaris/ordered_map
 # github.com/coreos/go-systemd v0.0.0-20190620071333-e64a0ec8b42a
 github.com/coreos/go-systemd/journal
 # github.com/coreos/pkg v0.0.0-20180108230652-97fdf19511ea
@@ -21,8 +23,8 @@
 # github.com/eapache/queue v1.1.0
 github.com/eapache/queue
 # github.com/gogo/protobuf v1.3.0
-github.com/gogo/protobuf/gogoproto
 github.com/gogo/protobuf/proto
+github.com/gogo/protobuf/gogoproto
 github.com/gogo/protobuf/protoc-gen-gogo/descriptor
 # github.com/golang/protobuf v1.3.2
 github.com/golang/protobuf/proto