Added RaaS request type

src/cmd.proto

@@ -10,4 +10,11 @@ message Command {
   oneof cmd {
     raas.bot.roll.RollCmd roll_cmd = 3;
   }
+}
+
+message Request {
+  uint64 timestamp = 1;
+  oneof cmd {
+    raas.bot.roll.RollCmd roll_cmd = 2;
+  }
 }