Support Windows container FluentD querying Windows event logs

**Is your feature request related to a problem? Please describe.**

FluentD can run within a container on Windows. But when running in this mode, this plugin cannot get the underlying VM's Windows event logs.

**Describe the solution you'd like**

Allow this plugin to capture Windows event logs when running inside a Windows container. Remote event log access, WMI Remoting, Powershell remoting, CIM sessions, etc. could be used for establishing this connection.

**Describe alternatives you've considered**

There is no way of running this plugin to get underlying VM's event logs from within a container. Only option is to run as a service on Windows outside of a container.