fix(backend): library use in message template

backend/pkg/messages/messages.go

@@ -1,6 +1,8 @@
 // Auto-generated, do not edit
 package messages
 
+import "encoding/binary"
+
 const (
 	MsgBatchMeta = 80
 

mobs/README.md

@@ -8,9 +8,8 @@ ruby run.rb
 
 ```
 
-In order generated .go file to fit the go formatting style:
+In order format generated files run:
 ```sh
-gofmt -w ../backend/pkg/messages/messages.go
-
+sh format.sh
 ```
 (Otherwise there will be changes in stage)

mobs/format.sh

@@ -0,0 +1 @@
+gofmt -w ../backend/pkg/messages

mobs/templates/backend~pkg~messages~messages.go.erb

@@ -1,6 +1,8 @@
 // Auto-generated, do not edit
 package messages
 
+import "encoding/binary"
+
 const (
 <% $messages.each do |msg| %>
     Msg<%= msg.name %> = <%= msg.id %>