Build library as a DLL

[TurboLed]

I would like to use the SUPRA library in accordance to LGPL 2.1, but there is no way to build it as a DLL, only static. None of the code contains the necessary __declspec(dllexport) declarations for instance.

Would it be possible to provide this option? Would it make sense for me to provide the required changes as a pull request?

Thank you