Solar Battery Script v1.0.0.0 fs19-mods

Description:

Solar Battery Script v1.0.0.0 Script needs to be installed manually to vehicles!

Adds ability for a vehicle to only work if solar power is active, else switching to battery.
Battery has a defined lifetime. If lifetime is reached, motor turns off and recharges when sun is back.

Instructions to modify settings, are within lua-file.