waitForData: use std::chrono::milliseconds for timeout

src/generic_io.h

src/ice_socket.h

src/ice_transport.cpp

src/ice_transport.h

src/jamidht/p2p.cpp

src/jamidht/sips_transport_ice.cpp

src/manager.cpp

src/peer_connection.cpp

src/peer_connection.h

src/security/tls_session.cpp

src/security/tls_session.h

src/sip/sipcall.cpp

src/turn_transport.cpp

src/turn_transport.h