Only export API symbols, keep everything else hidden. C++ API will only expose the ProjectM and PCM classes, but no internals.
If devs want to have full access to projectM's internals, they need to adapt the build process to their own needs.
Removed dependency on projectMtarget alltogether, as the playlist tests don't need the core library at all, only a few API functions which are mocked. Also made sure the mocked functions are declared as dllexport on Windows to match the dllimport declspec in the playlist library.
Target name is now just libprojectM::projectM for the main library instead of libprojectM::static or libprojectM::shared.
Now using CMake's default mechanism to select the resulting library type via the BUILD_SHARED_LIBS variable. Main use case will be working with the shared library, which is the default.
Playlist library now also builds as a shared library, including proper symbol exports.
Additionally, deleted the leftover TestRunner class and a few old and rather useless test cases.
Also added LLVM find_package call and as a link dependency if the build is configured for using (experimental) LLVM code.
Reorganized tests to link either one of the object libraries for unit testing.
There's still a sudden change between presets halfway through the transitions as the shaders are swapped, but fixing this would require a larger rewrite of how presets are rendered in the pipeline. Will do this later.
Mesh size is currently so deeply burrowed in the whole preset structure that changing it on the fly is basically impossible. For now, we'll reload the idle preset and reset the whole preset factory class tree to make sure all classes are properly reinitialized. If apps want to change the mesh size after startup, they need to reload the last played preset after changing the mesh size. This will be fixed in the future after the parser/equation compiler rewrite.
Was only possible on startup before, changing the paths required recreating the whole projectM instance. Now, the method will only reset the texture manager, but not the shaders and presets.
Still much to do here, especially in regards to key handling and config file parsing. For now, the app only load presets from the "presets" subdir of the current working directory.
