[4/13](try 3)hidclass.sys: Add USB Descriptor parsing

[Andrew Eikum]

Sorry for not noticing this before you resent, but you've got some C++
style comments in parse_io_feature.

Andrew

On Thu, Sep 03, 2015 at 11:19:31AM -0500, Aric Stewart wrote:
> More good comments and changes from Henri Verbeet
> 
> ---
>  dlls/hidclass.sys/Makefile.in  |    1 +
>  dlls/hidclass.sys/descriptor.c | 1163 ++++++++++++++++++++++++++++++++++++++++
>  dlls/hidclass.sys/hid.h        |    3 +
>  dlls/hidclass.sys/pnp.c        |   37 ++
>  4 files changed, 1204 insertions(+)
>  create mode 100644 dlls/hidclass.sys/descriptor.c