[bike map] Special icon treatment for bike shops, bike parking, etc

[nvkelso]

Work to be performed in the icons repo, but this tracks using in the style.

• [x] Functional complete (with fake bike-pois layer)
• [x] Final spritesheet arrangements
• [x] Final spritesheet AI file commit into icons repo
• [x] Final YAML dance to integrate into pois layer
• [x] Run anti-alisas script
• [x] Reset icon visibility to default

[nvkelso]

Couple different packaging options here.

[sensescape]

Related:

• 147 Experiment with no-badge bike parking icon

[sensescape]

Waiting to run anti-alias script until bike parking icon completes. Will track this in #147.