✨ Add status.php for getting iTop's status (#56)

Allow for HAProxy and monitoring to get iTop's status
✅ Add tests for status

Signed-off-by: Guy Couronné <gcouronne:@sapiens.biz>

status.php

@@ -0,0 +1,26 @@
+<?php
+
+//Include status functions
+require_once(dirname(__FILE__) . '/status.inc.php');
+
+//Do check Status
+try 
+{
+        \StatusStartup();
+        $aResult = array('status' => STATUS_RUNNING, 'code' => \RestResult::OK, 'message' => '');
+} 
+catch (\Exception $e) 
+{
+        $iCode = (defined('\RestResult::INTERNAL_ERROR')) ? \RestResult::INTERNAL_ERROR : 100;
+        $aResult = array('status' => STATUS_ERROR, 'code' => $iCode, 'message' => $e->getMessage());
+        http_response_code(500);
+}
+
+//Set headers, based on webservices/rest.php
+$sContentType = 'application/json';
+header('Content-type: ' . $sContentType);
+header('Access-Control-Allow-Origin: *');
+
+//Output result
+$sResponse = json_encode($aResult);
+echo $sResponse;