Return command_line and node_directory via the controller

docs/api/examples/controller_get_projects.txt

@@ -0,0 +1,22 @@
+curl -i -X GET 'http://localhost:3080/v2/projects'
+
+GET /v2/projects HTTP/1.1
+
+
+
+HTTP/1.1 200
+ACCESS-CONTROL-ALLOW-ORIGIN: *
+CONTENT-LENGTH: 252
+CONTENT-TYPE: application/json
+DATE: Thu, 08 Jan 2015 16:09:15 GMT
+SERVER: Python/3.5 GNS3/2.0.0dev1
+X-ROUTE: /v2/projects
+
+[
+    {
+        "name": "test",
+        "path": "/private/var/folders/3s/r2wbv07n7wg4vrsn874lmxxh0000gn/T/pytest-of-noplay/pytest-152/test_list_projects1",
+        "project_id": "00010203-0405-0607-0809-0a0b0c0d0e0f",
+        "temporary": false
+    }
+]