v3.16.0: Add 17 new icons

New Icons:

• copy
• display
• eco-cycle
• energy-green
• factory
• flashlight
• handshake
• laptop
• microphone-on
• microphone-off
• network
• smartwatch
• smiley-happy
• smiley-neutral
• smiley-unhappy
• training
• video-call

Removed Icons:

• arrow-narrow-down
• arrow-narrow-up
• oculus