choose OSC library

[schulz-alexander]

• https://github.com/radarsat1/liblo/tree/master/src , https://liblo.sourceforge.net/
• https://github.com/dimitry-ishenko-cpp/osc
• tinyosc

[schulz-alexander]

This seems to be a featurecomplete and lightweight OSC implementation: https://github.com/radarsat1/liblo