Add logic to change visibility of projects

 * add data-id attribute to each featured_project div
 * change checkboxes to radio buttons
 * include technologies in featured_project JSON
 * add css class 'hidden'
 * remove event.preventDefault();
 * declare variable for selected radio button value
 * include if statement adding 'hidden' class if data-id does not equal selected (will alway add, as the selected id is never equal to selected technology name)