Freightliner Cascadia 2019 Improved Dashboard v1.0

This mod improved SCS Freightliner Cascadia 2019 Digital Dashboard:

- added cruise control speed indicator;

- added average (trip) consumption indicator;

- added trip distance;

- added retarder icon;

- changed transmision gear indicator;

- removed non-working "ECONOMY" icon for transmission mode.

*Bonus

- added retarder on DD transmisions.