SHIELD SHIP
(Integer Shd1, Integer Shd2, Integer Shd3, Integer Shd4, Integer Shd5, Integer Shd6)

This command allocates the specified amounts of energy to particular shields.
If the total allocated is more than the current amount allocated to shields,
the specified values are scaled down.  On ships with 4 shields, Shd5 and Shd6
should be set to 0.
