Check_MK Werk 3946: uptime: added the uptime to inventory

ID: 3946 Title: uptime: added the uptime to inventory Component: HW/SW-Inventory Level: 1 Class: New Feature Version: 1.4.0i2 Added uptime of snmp and other agent based devices into the "Operating System" subtree. Be aware that the check interval default for the "HW/SW Inventory" is on "once per day".