The Windows Default matcher also checks the the OS Version prefix,
however, the platforms.DefaultSpec does not include it, which means
that it won't match the matcher.
This solves the issue by adding the OS Version to the DefaultSpec.
Signed-off-by: Claudiu Belu <cbelu@cloudbasesolutions.com>
Implements the Windows lcow differ/snapshotter responsible for managing
the creation and lifetime of lcow containers on Windows.
Signed-off-by: Justin Terry (VM) <juterry@microsoft.com>