Added WindowsCpuLayout as subclass of VanillaCpuLayout to provide a convenient CPU layout specification for systems without /proc/cpuinfo.
Added getDefaultCpuLayout in AffinitySupport and IAffinity to get a platform-independent default CPU layout.
Fix WindowsJNAAffinity so that AffinityLockTest passes, namely, make getAffinity work under windows.
Add another test to AffinityLockTest.assignReleaseThread to return early if not at least two CPUs are present.