Werk #5356

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.