Merge20201120

[samtertzakian]

1. Add ability for Client driver to specify default WDFQUEUE options.
2. Correct issue in DMF_ContinuousRequestTarget that allowed for possible deletion of memory that still has open reference.
3. Add Kernel-mode support for DMF_File.
4. Add new Module DMF_NotifyUserWithRequestMultiple.
5. Add Methods to DMF_SpbTarget to allow for transaction timeout.
6. Fix memory leak in User-mode version of DMF_HIdTarget.
7. Update documentation for DMF_BufferPool to clarify buffer enumeration.
8. Corresponding changes to documentation.