afb-proto-ws: Fix autolock in proto-ws
Because a systemd event loop can not be reentered
while evaluating an event callback, the event loop
was removed from the threads. It had the effect to
enter in deadlock when calling a synchronous call
while in an event callback.
Queueing a job solves the issue.
But because using queued job has implications on
libafbws, a fake job manager is added for libafbws.
Change-Id: Id793bea55743790082eaab48cd4cc87f7993772a
Signed-off-by: José Bollo <jose.bollo@iot.bzh>