Adding Project API Class, and anothers classes to handle bpmn layer model

workflow/engine/src/Services/Api/ProcessMaker/Project.php

@@ -0,0 +1,36 @@
+<?php
+namespace Services\Api\ProcessMaker;
+
+use Luracast\Restler\RestException;
+use ProcessMaker\Services\Api;
+use ProcessMaker\Adapter\Bpmn\Model as BpmnModel;
+
+/**
+ * Class Project
+ *
+ * @package Services\Api\ProcessMaker
+ * @author Erik Amaru Ortiz <aortiz.erik@gmail.com, erik@colosa.com>
+ *
+ * @protected
+ */
+class Project extends Api
+{
+
+    function post($request_data)
+    {
+        try {
+            $bpmnModel = new BpmnModel();
+
+            return $bpmnModel->createProject($request_data);
+        } catch (\Exception $e) {
+            throw new RestException(Api::STAT_APP_EXCEPTION, $e->getMessage());
+        }
+    }
+
+    function get($prjUid)
+    {
+        $project = BpmnModel::loadProject($prjUid);
+
+        return $project;
+    }
+}