Added factor field ot i_o_types table.

Added seeders for i_o_types and scopes tables.

database/migrations/2018_09_09_083711_add_factor_field_to_i_o_types_table.php

@@ -0,0 +1,32 @@
+<?php
+
+use Illuminate\Support\Facades\Schema;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Database\Migrations\Migration;
+
+class AddFactorFieldToIOTypesTable extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::table('i_o_types', function (Blueprint $table) {
+            $table->tinyInteger('factor');
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::table('i_o_types', function (Blueprint $table) {
+            $table->dropColumn('factor');
+        });
+    }
+}