[BloodBagging] - Quick fix

Fixed missing _bbselect var.

Changed humanity, In place of 250 soon as you start to bloodbag, This
has changed to give 25 humanity per tick so the player giving the
bloodbag will now have to wait the full time and humanity is only gained
on the amount of blood given.
So if you only do one tick giving 500 blood you only get 25 humanity
[Fuel Consumption] - Prototype testing

Fuel Consumption testing.