Support filtered_html as a default body format for CMIS content

By default, content synchronised through CMIS SYNC is set with a body_format of NULL, so any HTML tags are always displayed when rendering the field, even if the default format for that field is set to something like 'Filtered HTML'.

Either this module should respect these default field settings, or there should be arguments to support automatically setting this body format setting to a particular format.

As a quick workaround, the following code will set all loaded content to 'Filtered HTML' for all field types ''

// cmis_sync/cmis_sync.drupal.inc line 280
$node->$field_name = array();
$node->{$field_name}['und'][0]['value'] = $field_value;
// modification begins here
if ($fields[$field_name]['widget']['type'] === 'text_textarea_with_summary') {
  $node->{$field_name}['und'][0]['format'] = 'filtered_html';
// modification ends here
}

This could be set in settings.php as a specific format for each synchronised field, and/or a global default format for specific widget types, etc.