Provide implementation for the change view component in the toolbar as documented here:
http://www.patternfly.org/pattern-library/forms-and-controls/toolbar/

Note : Ang PF implementation can be found here for reference: http://www.patternfly.org/angular-patternfly/#/api/patternfly.toolbars.component:pfToolbar

Note that other portions of the Toolbar are being tracked in #102