Copy stable/10@r272459 to releng/10.1 as part of
the 10.1-RELEASE process.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

MFC r263105, r263106:

r263105:
Add hyperv manual pages provided by Microsoft, formatted
for FreeBSD standards. Very little, if any, content was
modified.

r263106:
Connect the hyperv driver manuals to the build.

Sponsored by: The FreeBSD Foundation

Add hyperv manual pages provided by Microsoft, formatted
for FreeBSD standards. Very little, if any, content was
modified.

These are not yet linked to the build.

Submitted by: Abhishek Gupta (abgupta!microsoft dot com)
Sponsored by: The FreeBSD Foundation