Push initial implementations of new repository structure

This breaks almost the entire panel, do not pull this branch in this state.

Mostly just moved old repository files to a new folder without updating anything else in order to start doing new things. Structure is not finalized.

database/migrations/2017_06_10_152951_add_external_id_to_users.php

@@ -0,0 +1,32 @@
+<?php
+
+use Illuminate\Support\Facades\Schema;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Database\Migrations\Migration;
+
+class AddExternalIdToUsers extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::table('users', function (Blueprint $table) {
+            $table->unsignedInteger('external_id')->after('id')->nullable()->unique();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::table('users', function (Blueprint $table) {
+            $table->dropColumn('external_id');
+        });
+    }
+}