Check_MK Werk 5356: emcvnx_info, emcvnx_agent: move information from emcvnx_info into subchecks and a agent check

ID: 5356 Title: emcvnx_info,emcvnx_agent: move information from emcvnx_info into subchecks and a agent check Component: Checks & agents Level: 1 Class: New feature Version: 1.5.0i1 This werk moves information from the existing emcvnx_info check into new subchecks for configuration settings, IO statistics, management port information, and storage processor information. Additionally, the check emcvnx_agent is added. It contains information about the devices that the destination Unisphere agent controls. This information was included in in emcvnx_info as well. Furthermore the info check now returns {CRIT} if the System Fault LED is on, the management port subcheck returns {CRIT} if the link is down, and the IO check returns {CRIT} if there are any hard errors. To use these new checks a service rediscovery on the affected hosts will be necessary.