By Emma Pinedo, Christina Thykjaer and Belén Carreño MADRID (Reuters) – Pablo Casado, leader of Spain’s centre-right opposition People’s Party, appeared to bid farewell to parliament on Wednesday amid rising speculation that he would bow to pressure to resign, deepening turmoil in the PP that could benefit the far right. The crisis worsened last week after Isabel Diaz Ayuso, the popular regional PP leader of the capital Madrid, accused top party brass of secretly gathering alleged evidence of corruption against her and her entrepreneur brother over a contract to buy COVID face masks. Ayuso has…