Added CMakeLists.txt files

First stage in swichting from make to cmake!
Added Find*.cmake files in cmake/

Needed to search for the used external libs.
Moved main.cpp in include folder to the other sources
Renamed folder include/ to src/
Deleted the library copies which wont be used anymore
Completely changed  FindSFML.cmake
Extended the .gitignore file

Now also takes care of:
- code::blocks projectfiles
- build/ directories
Tidied up the CMakeLists
Added *.user to .gitignore
Most important: Updated Readme.md :)
Updated .gitignore
Changed a lot of stuff!
Merge branch 'cmake'

Conflicts:
	include/ant.h
	include/block.h
	include/leveldrawer.h
	src/main.cpp
	src/objectcreator.h
Changes to get the merge running