[z2309] Clean up CMake files, and add placeholders for the Lua engine.

Signed-off-by: Daniel S. Reichenbach <daniel@kogitoapp.com>
[z2310] Removed special characters from license.

Signed-off-by: Daniel S. Reichenbach <daniel@kogitoapp.com>
[z2311] Fixed repository URL in file headers.

Signed-off-by: Daniel S. Reichenbach <daniel@kogitoapp.com>
[z2312] Started rewriting the README to better explain what mangos zero is, and how to use it.

Signed-off-by: Daniel S. Reichenbach <daniel@kogitoapp.com>