starting to build out view
changed to LikesHandler::checkForGiftCategoryBuyingPreference method in gift category preference table
rejiggered and renamed method to handle checking buying preferences on gift categories
added new belongsToMany method
adding call to seed BuyingPreferences table
updated PageUpdater::updateCategoryPreference to PageUpdater::updateCategoryBuyingPreference
first commit - created Buying Preferences Table and pivot table with Users and Gift Categories