[MDCNavigationBar] Allow tintColor to change navigation bar title text by applying titleTextAttributes
[MDCNavigationBar] Allow tintColor to change navigation bar title text by applying titleTextAttributes

Summary: Throughout catalog several demos have title text appearing as black instead of white. tintColor was expected to change the title text color. This fixes the issue by applying tintColor to titleTextAttributes.

Reviewers: featherless, iangordon, O1 Material components iOS, ajsecord

Reviewed By: O1 Material components iOS, ajsecord

Tags: #material_components_ios

Differential Revision: http://codereview.cc/D1466

sigito/material-components-ios,willlarche/material-components-ios,chriscox/material-components-ios,samnm/material-components-ios,material-components/material-components-ios,chriscox/material-components-ios,chriscox/material-components-ios,sigito/material-components-ios,Eccelor/material-components-ios,willlarche/material-components-ios,randallli/material-components-ios,brianjmoore/material-components-ios,randallli/material-components-ios,brianjmoore/material-components-ios,randallli/material-components-ios,Eccelor/material-components-ios,chriscox/material-components-ios,material-components/material-components-ios,samnm/material-components-ios,willlarche/material-components-ios,willlarche/material-components-ios,material-components/material-components-ios,sigito/material-components-ios,material-components/material-components-ios,willlarche/material-components-ios,samnm/material-components-ios,brianjmoore/material-components-ios,chriscox/material-components-ios,randallli/material-components-ios,samnm/material-components-ios,brianjmoore/material-components-ios,brianjmoore/material-components-ios,samnm/material-components-ios,Eccelor/material-components-ios,sigito/material-components-ios,material-components/material-components-ios,Eccelor/material-components-ios,randallli/material-components-ios,randallli/material-components-ios,Eccelor/material-components-ios,sigito/material-components-ios