N°2214 Add PHP check in CLI scripts

It is quite common that the PHP interpreter that is launched in CLI is different that the one used by the webserver. So iTop code launched by CLI could run in a context that doesn't meet iTop requirements !

This adds in the following scripts the same control that is done on the setup wizard first step :
* cron.php
* backup, check-backup
* export, exportv2
* bulk import
* synchro-exec, synchro-import

If the check throws at least one error then the script is stopped with an appropriate message, and a log is made (IssueLog, Error level, CLI channel)

synchro/synchro_exec.php

@@ -72,6 +72,7 @@ function ReadMandatoryParam($oP, $sParam, $sSanitizationFilter = 'parameter')
 if (utils::IsModeCLI())
 {
 	$oP = new CLIPage(Dict::S("TitleSynchroExecution"));
+	SetupUtils::CheckPhpAndExtensionsForCli($oP, -2);
 }
 else
 {