[CMake] [Dev] CMake 2.5 tool chain support example

[Trevor Kellaway]

Alex,

> Not too long ago I also did some programming e.g. on a PIC16, 
> which had 2k word program memory (2 k word != 2048 byte, 
> since one word is 14 bit) and 256 byte (not KB ! ;-) of RAM. 

FYI, using my previous patch method I have the Microchip PIC18 compiler
working under CMake, although I haven't moved this to the new tool chain
method yet.

BTW, the cross compiling Wiki page looks good.

 - TrevK