* Create Pill component for Label manager component.
* Fixed some styling issues when using the Pill component.
* Initial layout for the Label Selector component.
* Add basic new label input scaffold
* Added label format validation and error message.
* When hitting enter or clicking add, add a label to the list.
* Added tooltip to add labels header.
* Support dismissing labels and focus the input when opening.
* Create clickoutside hook and use it in the label picker.
* Create and use a onescape hook in the label picker.
* Remove the temp ability to pass in existing labels.
* added tests for LabelSelector component
* fix validation regex to allow numbers hyphens and periods.
* remove incorrectly added component instance.
* do not use default imports and other tweaks.
* use flexbox instead of floats for label input labels.
* use utility methods for tests to make it easier to understand.
* remove remaining floats and some review cleanup.
* added missing license messages.
* Move useCallback usage into parent component from hook.
Lisa Kim