Add new hazmat icons

[michelle-alaskaair]

Icon attributes

Add a new hazard category for these new icons to live.

Resolves issue #258

category	name	accessibility description
hazmat	aerosol-stroke	aerosol spray can
hazmat	aerosol-filled	aerosol spray can with solid fill
hazmat	canned-fuel-stroke	can of fuel
hazmat	canned-fuel-filled	can of fuel with solid fill
hazmat	fireworks-stroke	firework
hazmat	fireworks-filled	firework with solid fill
hazmat	lighter-stroke	lighter
hazmat	lighter-filled	lighter with solid fill
hazmat	lithium-batteries-stroke	battery
hazmat	lithium-batteries-filled	battery with solid fill
hazmat	loose-ammo-stroke	three bullets
hazmat	loose-ammo-filled	three bullets with solid fill
hazmat	matches-stroke	lit match
hazmat	matches-filled	lit match with solid fill
hazmat	oxygen-stroke	oxygen tank
hazmat	oxygen-filled	oxygen tank with solid fill
hazmat	small-engine-stroke	engine
hazmat	small-engine-filled	engine with solid fill

The icon(s) per this request, has the new art been completed?

Yes, art has been added to the Figma docs

Attach exported SVG files to this issue

hazmat_icons.zip