Don't allow accurate backups for VMWARE plugin.

We need to replay each full, differential and incremental on top of each
other to be able to reconstruct the whole VMDK. If we allow accurate and
as we generate a new file name every time BAREOS will think the previous
files are deleted in the backup and as such only restore the lastest
data and not the previous backups.

vmware_plugin/BareosFdPluginVMware.py

@@ -117,6 +117,13 @@ def start_backup_job(self, context):
         if check_option_bRC != bRCs['bRC_OK']:
             return check_option_bRC
 
+        accurate_enabled = bareosfd.GetValue(context, bVariable['bVarAccurate'])
+        if accurate_enabled != 0:
+            bareosfd.JobMessage(
+                context, bJobMessageType['M_FATAL'],
+                "start_backup_job: Accurate backup not allowed please disable in Job\n")
+            return bRCs['bRC_Error']
+
         if not self.vadp.connect_vmware(context):
             return bRCs['bRC_Error']