Determine the height and width of the terminal, and store this information into variables for subsequent use.

/* terminal_control_dimensions.wren */
 
class C {
    foreign static terminalWidth
    foreign static terminalHeight
}
 
var w = C.terminalWidth
var h = C.terminalHeight
System.print("The dimensions of the terminal are:")
System.print("   Width  = %(w)")
System.print("   Height = %(h)")