[增添]添加了datasource的setting数据库以及默认值

vendor/kirschbaum-development/eloquent-power-joins/src/PowerJoinsServiceProvider.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace Kirschbaum\PowerJoins;
+
+use Illuminate\Support\ServiceProvider;
+
+class PowerJoinsServiceProvider extends ServiceProvider
+{
+    /**
+     * Bootstrap the application services.
+     */
+    public function boot()
+    {
+    }
+
+    /**
+     * Register the application services.
+     */
+    public function register()
+    {
+        EloquentJoins::registerEloquentMacros();
+    }
+}