Update icons with multiple paths to single paths

[willymaps]

Icon Edit

• bakery.svg is currently using two path elements – it should only be one compound path.

[willymaps]

Also noticing this same error in:

• drinking-water.svg
• entrance.svg
• furniture.svg
• globe.svg
• ice-cream.svg
• karaoke.svg
• shoe.svg
• veterinary.svg
• watch.svg

Unnecessary <g> tags in:

• communications-tower
• confectionary
• convenience
• dog-park
• grocery
• restaurant-noodle
• restaurant-pizza
• restaurant-seafood
• slipway

[willymaps]

Closed with https://github.com/mapbox/maki/pull/545