Zabbix

.........T [ZBXNEXT-6507] added Template Power APC UPS by SNMP

Merge in ZBX/zabbix from feature/ZBXNEXT-6507-5.0 to release/5.0

* commit '828e9f6cb507ebf73dcdd45701100844112208f4':
  .........T [ZBXNEXT-6507] removed link to Template Module Generic, added ICMP, Generic SNMP items and them macros and value maps
  .........T [ZBXNEXT-6507] README.md edited online
  .........T [ZBXNEXT-6507] changed link to the forum topic, made small fixes
  .........T [ZBXNEXT-6507] changed 15m to {$TIME.PERIOD} in triggers, removed triggers for input.fail, added macro descriptions, added triggers for battery.pack.status and battery.pack.cartridge_health
  .........T [ZBXNEXT-6507] added graphs and screen
  .........T [ZBXNEXT-6507] added the phase.input.current item, added a description of the External bad battery packs discovery, added trigger to the phase.input.voltage
  .........T [ZBXNEXT-6507] added Template Power APC UPS by SNMP