Update: Restructure fake settings, moving examples into a new projects directory.

Update: Restructure fake settings, moving examples into a new projects directory.

Create a projects directory to store some real replacements of other projects build systems.
The bzip2 build system was used as just an example and is now treated as a real use case.

I am planning on trying to use cmocka to provide unit tests for this project.
The cmocka uses that rather unpleasant cmake.
Provide a cmocka fake build setting file for building cmocka.