New Advisor System

I've made an advisor system for the game, which guides players towards what to build to get the city up and producing.
The oil amounts and some other amounts have been changed, and roads no longer count towards random disasters.
Also made it such that sound on/off is chosen before the game even starts.
And a new conversion menu that also has a shovel button that can be toggled at the top of the screen,
making it easier for mobile devices to use the shovel.
With the changes it is smoother to get to building up a large city, and it allows for more space to do so.