Meteor shielding improvements

[FunnyMan3595]

What Does This PR Do

Meteors now appear at the edge of the map (beyond the buildable range), rather than so close they can bypass shield satellites.
Emagged shield satellites are now clever and shoot down simulated meteors.
Shield sats inside a crate now report the crate's position on the control map, rather than the corner of the map.

Why It's Good For The Game

Makes the shields work better, emagged sats not tell on themselves, and fixes a bug.

Testing

Spawned meteors. They flew normally, but from the map edge.
Threw meteors at emagged and non-emagged shield sats. Emagged ones didn't fire.
Simulated a meteor wave. Emagged sats reported shooting down meteors.
Looked at a crate on the shield sat map.

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Declaration

• I confirm that I either do not require pre-approval for this PR, or I have obtained such approval and have included a screenshot to demonstrate this below.

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Changelog

🆑
tweak: Meteors now appear at the edge of the map (beyond the buildable range), rather than so close they can bypass shield satellites.
tweak: Emagged shield satellites are now clever and shoot down simulated meteors.
fix: Shield sats inside a crate now report the crate's position on the control map, rather than the corner of the map.
/:cl: