feat(tooltips): Add tooltip directive

Closes #552
style(rxApp): Create, style, and document Account Info box

feat(rxInfoPanel): initial commit

feat(rxInfoPanel): Working rxInfoPanel

test(rxInfoPanel): Prep for tests

style(rxInfoPanel): Clean up CSS, use more semantic HTML

fix(rxInfoPanel): Address PR comments

fix(rxInfoPanel): Remove controller from demo

style(rxInfoPanel): Add back full width property