[Qt-creator] Extend Qt-creator to recognize source file extension .xc

[André Hartmann]

Hi,

first of all, I like to thank all for this great piece of software.

I'm currently using Qt-creator 2.1 Beta on Windows and it works like a 
charm.

We use Qt-creator for Qt development (of course) but also for 
microcontroller projects.

We have a C compiler for a special coprocessor (Freescale XGate), which 
usese the extension .xc for it's source files. The source itself is pure C.

I see that there is already a list of different extensions that are 
recognized as C/C++ source files, is there a easy way to extend this 
list to the .xc extension?

Thanks in advance,

Andre Hartmann