Wrap network module

[Guigui220D]

Now that almost eveything is wrapped, I'm thinking of wrapping the network module. It would make networking available without asding a dependency (plus sfml has cool things like http and ftp client).

Maybe it should exist separately?

[Guigui220D]

Started adding the network module because zig's semantics will make some things nice and the network module has ftp, http, etc...
Made a network branch.

[Guigui220D]

#35 contains some work
There is still some things to do (http, ftp, ...)