Added application and project roles validation for API procedure calls

app/Api/Procedure/BoardProcedure.php

@@ -0,0 +1,25 @@
+<?php
+
+namespace Kanboard\Api\Procedure;
+
+use Kanboard\Api\Authorization\ProjectAuthorization;
+use Kanboard\Formatter\BoardFormatter;
+
+/**
+ * Board API controller
+ *
+ * @package  Kanboard\Api\Procedure
+ * @author   Frederic Guillot
+ */
+class BoardProcedure extends BaseProcedure
+{
+    public function getBoard($project_id)
+    {
+        ProjectAuthorization::getInstance($this->container)->check($this->getClassName(), 'getBoard', $project_id);
+        
+        return BoardFormatter::getInstance($this->container)
+            ->withProjectId($project_id)
+            ->withQuery($this->taskFinderModel->getExtendedQuery())
+            ->format();
+    }
+}