Simplfiy existing CMake scripts by using CMake 3+ features

This merge request includes the following features:

• Replace all CMake scripts with simplified versions
• Use CMake variables instead of redefining the wheel (e.g. for C++ compiler parameters)
• Generated CMake target scripts for the end user
• Separate Debug and Non-Debug versions of the libraries
• Add paths to the CMake configs to setup.sh so the user can simply find the libraries. See examples/memcheck/CMakeLists.txt for examples on how to use Tapasco.
• Remove duplication from platform specific CMakeLists.
• Add --shared flag to tapasco-build-libs. By default the static version of the library is build.

All in all this hopefully should reduce clutter by introducing true out-of-tree builds and help the end-user by providing CMake configurations. Additionally, the CMake provided build types like Debug and Release or Shared Library Yes/No are working now.