(change:minor) In dcs::testbed::lq_application_manager class, skip control if no observation is found.
(change:minor) In dcs::testbed::lq_application_manager class, skip
control if no observation is found.

(new:minor) In dcs::testbed::lq_application_manager class, added counter
to count the number of times control has been skipped.

sguazt/prometheus,sguazt/prometheus,sguazt/dcsxx-testbed,sguazt/prometheus