Update remisecheque.class.php

add change number of remisecheque feature with the real number of the bank
Update fiche.php

Add feature to change refnumber of bank bordereau
Update modFacture.class.php

add export extrafields feature
Update modFournisseur.class.php

Add extrafields export feature on bill
Merge pull request #1557 from defrance69/develop

export extrafields on bill & set real ref bordereau number