JobServer: print completion percentage and ETA

If the JobServer is provided a total number of experiments by the
campaign, it now prints a completion percentage and an estimated
remaining runtime along the usual progress reports.

Change-Id: Ibd781ba8bff9af3a85683bbd29728216e316da57

src/core/cpn/CampaignManager.cc

@@ -42,5 +42,15 @@ void CampaignManager::noMoreParameters()
 	m_jobserver->setNoMoreExperiments();
 }
 
+void CampaignManager::setTotalCount(uint64_t count)
+{
+	m_jobserver->setTotalCount(count);
+}
+
+void CampaignManager::skipJobs(uint64_t count)
+{
+	m_jobserver->skipJobs(count);
+}
+
 void CampaignManager::done() { m_jobserver->done(); }
 } // end-of-namespace: fail