Prepare for option MAIN_GENERATE_PROPOSALS_WITH_PICTURE

Conflicts:
	htdocs/core/modules/livraison/pdf/pdf_typhon.modules.php
	htdocs/core/modules/propale/doc/pdf_azur.modules.php
	htdocs/core/modules/supplier_order/pdf/pdf_muscadet.modules.php

Conflicts:
	htdocs/core/modules/livraison/pdf/pdf_typhon.modules.php