implemented social identities management page + pw editing page. probably need to fix backend

database/migrations/2018_07_08_204449_create_oauth_identities_table.php

@@ -20,6 +20,10 @@ class CreateOauthIdentitiesTable extends Migration
 	        $table->string('provider_user_id');
 	        $table->string('provider');
 	        $table->string('access_token');
+            $table->string('nick_name');
+            $table->string('full_name');
+            $table->string('avatar', 500);
+            $table->string('email');
 
 	        $table->foreign('user_id')
 		        ->references('id')->on('users')