[Qt-creator] Cmake parser

[hatred]

> Well doing hat does have the advantage of also showing all the header files.
>
> On the other hand:
> - It shows unrelated files that are not part of the project

In my opinion, all files inside project tree is a part of project :-)

> - The add/remove/delete functions not updating the CMakeLists.txt is not
> right, that is just confussing for the user.

I specialy point that this functions add/remove/rename files on file
system and don't affect CMakeLists.txt. For CMakeLists.txt updating we
need complete CMake parser, it does not present currently.
We can look to KDevelop4 CMake project manager and take some ideas,
but currently I have no time for this :-(