[cleanup] Add more API filters Without these, Oxygen.1a complains (wrongly from what I can tell) about leakage of non-API types. Compiling the same project with Neon.3 does not show the errors. Change-Id: I2163c816f573491f1c1912afb0cd37c927eaa096 Signed-off-by: Pierre-Charles David <pierre-charles.david@obeo.fr>