Don't skip lines with no data after "=", as there are many presets with empty code lines. skipping it would create a gap in the line numbers, aborting the loop in GetCode() early.
Requires a general rewrite of the Milkdrop preset code. Previous implementation was tightly integrated into the code parser, so reusing this code wasn't possible. Additional refactoring was done, finished converting custom wave/shape implementations to use the new expression parser code.
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.
