Show local percentage of answers in local group

[LuisMayo]

Show local percentage of answers in local group the same way we show the global percentage
It'd affect all games with callback button.

This may be harder than it seems since it will require to change the way the message information is stored to actually remember the payload of each user

For example:

Would you press the button if

You can have anything you have ever wanted and desired.

but

You only have three days to live.

34% of global users would press the button
68% of users in this group would press the button