MFC r225839:

MFC r225839:
Import the rest of HID improvements from the branch:
 - improve report descriptor parser in libusbhid to handle several kinds of
reports same time;
 - add to the libusbhid API two functions wrapping respective kernel IOCTLs
for reading and writing reports;
 - tune uhid IOCTL interface to allow reading and writing arbitrary report,
when multiple supported by the device;
 - teach usbhidctl to set output and feature reports;
 - make usbhidaction support all the same item names as bhidctl.

Sponsored by: iXsystems, inc.

git-svn-id: svn://svn.freebsd.org/base/stable/8@229389 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f