Show arrow when placing buildings to clearly indicate the resulting rotation

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Describe the issue When placing buildings like the Mining Laser or Geological Center, there isn't any indicator for what rotation they'll spawn in. It's not too hard to figure out if you're familiar with how the rotation works, but it would be more user-friendly to show an arrow so that it's easy to tell.

Outline of feature

• A white arrow should be drawn over the origin tile in the SelectPlace tile grid to indicate the current rotation of the building before placing.
• This arrow should (by default) show exclusively for buildings with only solid tiles (aka the buildings described in the first section).
• A setting should be made to disable the arrow, or change if it always shows, or only shows for purely solid buildings.

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Screenshot Example of placing a larger building with the arrow visible.

Video Example of placing the Mining Laser and deciding on the building rotation.

https://user-images.githubusercontent.com/9752430/189546414-ea9e297d-9700-4980-b28f-db261d7bc06d.mp4

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This has been implemented by 4122d0f57cb43c4866673143c445aad0f4dab9ba.

The final implementation went with a triangle over an arrow shape. The triangle also faces flush with the ground Z level instead of hovering at the highest Z value above the SelectPlace tile.