Add ENGINE_API to UVoiceChannel

This is a simple request (not sure if this is the best place to put it but am hoping this gets noticed / added to a bugfix),

Put simply can an Epic dev add ENGINE_API to UVoiceChannel so that it gets exported?

Additionally adding the virtual keyword to UVoiceChannel::AddVoicePacket would be extremely helpful.

It will certainly make my life easier, and hopefully someone else’s in the future.

Thanks!

Edit: I have submitted a pull request with this exact change in case it helps.

You can see it here: https://github.com/EpicGames/UnrealEngine/pull/681

(If it’s possible to get this in for 4.6.1, that would be perfect!)