MOOSH485 - Fix Dynamic Properties - CourseInfo.php

Three properties weren't declared:
- $enrolledtotal
- $logsnumber
- $data

So I declared them as private properties to remove the
deprecated messages.

Moosh/Command/Moodle39/Course/CourseInfo.php

@@ -51,6 +51,10 @@ class CourseInfo extends MooshCommand
     private $filesnumber;
     private $filesize;
 
+    private $enrolledtotal;
+    private $logsnumber;
+    private $data;
+
     public function __construct()
     {
         global $DB;