Fix logging facility
Fix logging facility

Add metron_agent and etc_metrics_server, and reconfigure them and
loggregator.

kaerlong/cf_nise_installer,kaerlong/cf_nise_installer,yudai/cf_nise_installer,tchughesiv/cf_nise_installer,yudai/cf_nise_installer,wabcwang/cf_nise_installer,tchughesiv/cf_nise_installer,wabcwang/cf_nise_installer