Add Arrange component with tests.

Add component for arranging and aligning rows of items. Provides a declarative, rapid way to achieve some common patterns (such as input add-ons) without knowing (and accounting for) implementation details. 

Status: **Opened for visibility**
Reviewers: @kpeatt @jeffkamo @scalvert 

## Changes
- Add Arrange component.
- Add tests.

## Notes
- Contains an integration test (with utils-dimension) that will fail until utils-dimension is merged in and becomes available.