Chat Room : Avoid to add a ref when there is no messages on search - Add PDB of liblinphone_tester - Group Chat Message test : Fix memory corruption by moving unref message to a better place - Build group chat secure tester only if Lime X3DH is build - Add Assert to end test if some pointers are null (append when there is an issue with building encrypted room) - add tests on pointers - remove calls cache before destroying factory - ICE : switch stream after handling ice event as it can change it - Fix tests