Add CMake Project

Projects Qt and CMake long time friends.

Starting with version 3.1 CMake contains a CPack IFW generator
for packaging by QtIFW:
https://cmake.org/cmake/help/latest/release/3.1.html#cpack

Suggestion provide CMake project files for QtIFW for more projects integration.

I work on this task in 'topic-cmake-project' branch on my server:
http://git.podsvirov.pro/?p=qt/qtifw.git;a=shortlog;h=refs/heads/topic-cmake-project