Veni, Vidi, Running on PowerPC!

I have made the code compatible with big-endian architectures (PowerPC) and fixed some endian-bugs.

Using the _HoRNDIS_PPC.xcodeproj_ (for Xcode 2.4-3.1) it is possible to build a version of HoRNDIS which will run on
- Mac OS X 10.4 Tiger or 10.5 Leopard (possibly also higher versions)
- PowerPC and i386*

The state of this backport has to be considered __BETA__ at this point !

### Disclaimer:
Although the product has run for hours without any problems, __KERNEL PANICS__ do occasionally happen!
It is recommended to load the kext on 10.5 or lower _manually_ only.

It is _your sole_ responsibility to make sure that your data is always save when you're running HoRNDIS on one of the systems mentioned above!


_*i386 has not been tested._