Add Windows OS stats to system logs.

Mark Benvenuto mentioned that Windows won't kill processes that use a large amount of memory. So it's hard to tell why a process dies solely based on per-process information.

It'd be nice to add system level information from wmic os get /format:list to get a sense of how much virtual and physical memory is available in total.

This may require a change in our evergreen config file rather than in the server code base.