Add mention model/migration/translation

database/migrations/2018_06_08_003624_create_mentions_table.php

@@ -0,0 +1,34 @@
+<?php
+
+use Illuminate\Support\Facades\Schema;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Database\Migrations\Migration;
+
+class CreateMentionsTable extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::create('mentions', function (Blueprint $table) {
+            $table->bigIncrements('id');
+            $table->bigInteger('status_id')->unsigned();
+            $table->bigInteger('profile_id')->unsigned();
+            $table->boolean('local')->default(true);
+            $table->timestamps();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::dropIfExists('mentions');
+    }
+}