qi_doc: generate a breathe_projects configuration line
qi_doc: generate a breathe_projects configuration line

Change-Id: I5e93afe49dc8449c48bf064302fc7da8c0253f77
Reviewed-on: http://gerrit.aldebaran.lan/64708
Tested-by: gerrit
Reviewed-by: ncornu <13ba26b8f12d26c819f48749c65f2f7f5c1d13db@aldebaran.com>

aldebaran/qibuild,aldebaran/qibuild,aldebaran/qibuild,aldebaran/qibuild