Directseeding v1.0.0.0

This mod adds direct seeding to seeders that have grown a rotary harrow.

Included are:
- Amazone Centaya 3000 Super:
Price: 23.500 $
Required power: 50 hp
Working width: 3.0 m
Max. working speed: 12 kph

- Nordsten HK 25 + NS 3030:
Price: 33.500 $
Required power: 125 hp
Working width: 3.0 m
Max. working speed: 12 kph

- Kuhn Venta 4030:
Price: 25.000 $
Required power: 60 hp
Working width: 4.0 m
Max. working speed: 12 kph

- Kuhn HR 6040 RCS + BTFR 6030:
Price: 67.500 $
Required power: 300 hp
Working width: 6.0 m
Max. working speed: 12 kph

- Pöttinger Lion 303 + Aerosem 3002:
Price: 41.000 $
Required power: 165 hp
Working width: 3.0 m
Max. working speed: 12 kph

- Alpego RK 300 + Jet-M:
Price: 37.000 $
Required power: 125 hp
Working width: 3.0 m
Max. working speed: 12 kph

- Kverneland e-drill maxi:
Price: 34.500 $
Required power: 130 hp
Working width: 3.0 m
Max. working speed: 15 kph