Update Bank / VAT / Salaries

- Bank :: Key language are missing / typo
- VAT :: Add type_payment & num_payment who are missing but present into create form / Typo / Add sortfield & search into payment page
- Salaries :: Fix Sql problem / Typo  & presentation / Add sortfield & search into payment page
- Trips :: In module admin page move from financial to hr family
- Social contrib :: Replace index.php by $_SERVER["PHP_SELF"]