feat(rxAccountInfo): Add rxAccountInfo component

This component is Rackspace-specific for showing account info and
badges, but also serves as a useful example for how to use rxInfoPanel.

This also brings `resource-helpers.js` in (hat tip to @halkon) to help with mocking services in unit tests.
The more I look at this, the more I think `.badge(index)` is a bit terse.

I abhor the "java" part of javascript, and would never recommend `getBadge`, even though it's entirely descriptive.

How about I flesh this out into a full `badge` namespace, and offer some more functionality? I'm thinking `badge.byIndex()`, `badge.byTooltip()`, and `badge.byHref()`.