feat(formatfield): Formats an input field using language sensitive number formatting
feat(formatfield): Formats an input field using language sensitive number formatting

The formatfield component formats an input field using language sensitive number formatting. It acts
as a "pluggable" component. It can be added to a mdl-textfield component or to an input element.

closes #89

leifoolsen/mdl-ext,leifoolsen/mdl-ext