MB-339A cockpit INI update v1

Updated cockpit ini for the ID(io)T Team MB-339A

available here

http://combatace.com/files/file/12063-aermacchi-mb-339a-for-sf2/

and

http://combatace.com/files/file/11304-aermacchi-mb-339a-pan/

Updated instruments/functions are

- position of the cockpit (minor tweak)

- gunsight, added gyro function

- fuelflow gauges, show correct consumption

- station lights now show correct selected stations

- g-meter, new calibration, 1 G at level flight

- mach-indicator new calibration, shows correct mach at all altitudes

- airspeed-knots new calibration,

- variometer, new calibration, now shows correct vertical velocity