Add reference time scale to the protobuf
Add reference time scale to the protobuf

Change-Id: I085c8203194262c80ed38f4fca9a26e9417bb977

leandromoreira/edash-packager,nevil/edash-packager,leandromoreira/edash-packager,leandromoreira/edash-packager,leandromoreira/edash-packager,nevil/edash-packager,nevil/edash-packager,leandromoreira/edash-packager