Parameter 1 (I): Maximum number of credits to beam up (0=as many as possible)
If the ship is in orbit of a friendly planet, the ship will beam up money from the planet. The first parameter specifies the maximum amount to beam up; if it is zero, as much as possible is gathered.
Preconditions:
- ship is orbiting a friendly planet
- no fuel required
Relevant PControl Stage: GatherMission.
