(CFACT-110) Add Windows memory facts

Adds memory facts for Windows by implementing the memory_resolver using
a kernel32 API.
(CFACT-110) Fix for changes to logging
(CFACT-110) Use GetPerformanceInfo's pagefile info

Use GetPerformanceInfo to retrieve total allocated page file space, for
the swap_file facts. That API also provides the same information as
GlobalMemoryStatusEx for global memory.
Merge pull request #166 from MikaelSmith/task/master/CFACT-110-Windows-memory-facts

(CFACT-110) Add Windows memory facts