Monocle contributor Claire Rigby reviews the latest exhibitions from Rio de Janeiro, from Cinthia Marcelle’s ‘em-entre-para-perante’ (in-between-for-before) at Silvia Cintra + Box 4, Rogerio Reis’s ‘Microondas’ and Felippe Sabino’s ‘Ermo, Reminiscênia’ (Wilderness, Reminiscence) at…