Missing basic icons

[joeyfigaro]

Will update this as I find other missing icons.

• (camera) flash toggle
• (camera) flip
• ~(hamburger/stack) menu~
• dismiss/close 'X' without a border
• unchecked circle / square (for showing checkboxes/radios in an unchecked state)

Update: I discovered that I was missing the hamburger menu icon due to a types issue on my part. The rest still seem to be missing, though.

[joeyfigaro]

Any thoughts on this @bang88 @vthinkxie