fix: case insensitive compare of fs mount names on windows
fix: case insensitive compare of fs mount names on windows

* find fs mounts by insensitive names on windows
* mount not found shows available mounts

virgo-agent-toolkit/rackspace-monitoring-agent,AlphaStaxLLC/rackspace-monitoring-agent,christopherjwang/rackspace-monitoring-agent,AlphaStaxLLC/rackspace-monitoring-agent,kaustavha/rackspace-monitoring-agent,kaustavha/rackspace-monitoring-agent,christopherjwang/rackspace-monitoring-agent,virgo-agent-toolkit/rackspace-monitoring-agent