Task:     CMake support
Details:  we don't pass those to the cbp file generation, that might create problems.

Details:  Forgot to add the factories, also the configuration options for the cmakestep don't work atm.

Details:  Not yet usable, but at least you get a list of build targets now.

Task:     -
RevBy:    -
AutoTest: -
Details:  Note: I need to refactor the code significantly, i'm more or
less convinced that one build configuration per target is wrong.
We probably want one build configuration per build directory and instead
build all targets that we are interested then in the makestep.
This means we won't have any cmake support for the beta.

Task:     -
RevBy:    -
AutoTest: -
Details:  Actually building only works on unix (since the generator is
hardcoded.) and make is called without any parameters which is wrong.
A lot is missing for basic build support, but this is a start.

Details:  Also add copyright headers and some initial code for the
CMakeStep and MakeStep. Soon it will actially build something.

Task:     -
RevBy:    -
AutoTest: -
Details:  -

Should have been part of 83e3524b