Case T-182/15: Judgment of the General Court of 9 April 2019 — Sopra Steria Group v Parliament (Public service contracts — Tendering procedure — Supply of IT services to the Parliament and other EU institutions and bodies — Exclusion from tendering procedures — Potential conflict of interests — Failure to provide information required by the contracting authority — Article 107(1)(b) of the Financial Regulation — Transparency — Proportionality — Equal treatment — Article 102(1) of the Financial Regulation)