Opinion of the European Economic and Social Committee on the ‘Proposal for a directive of the European Parliament and of the Council on certain aspects concerning contracts for the supply of digital content’ (COM(2015) 634 final — 2015/0287 (COD)) and the ‘Proposal for a directive of the European Parliament and of the Council on certain aspects concerning contracts for the online and other distance sales of goods’ (COM(2015) 635 final — 2015/0288 (COD))