There is nothing in CSFML/SFML.NET for text outlining until it is merged into SFML's master. I will add support to CSFML/SFML.NET as soon as that happens. In short: you need to write the wrapper functions in CSFML and then also in SFML.NET.
As for compiling CSFML, it requires CMake - same as SFML. Once you figure out how to compile SFML (follow the tutorial) its basically the same to compile CSFML.