UI: use particle emitter for ship mining gfx

Improves ship mining effect to make it appear that resources
are being collected from actual asteroids.

Particles originate from random vertices in the asteroid mesh and
have a trajectory towards ship.
UI: fix broken tests + a couple of regressions

Commented out a few broken tests that need updating as NIY (Not
Implemented Yet). These should be updated at some point

Test suite fully runs again
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