Problem porting SFML.jl to Julia 1.1

[Gnimuc]

@scelles has already made a PR targeting Julia v0.7:

Fix some Julia 0.7 depwarns

and here are some thoughts on upgrading the build system to BB2 which can provide an out of box installation experience.

Nuklear.jl - A Julia wrapper for Nuklear?

search function is not continued in Julia v1.0, you could use occursin I guess. It looks like SFML is not actively maintained(last commit is one year ago). It would be great if we could upgrade the build system to BB2 with which installation related issues would be solved spontaneously. To this end, we need to build those missing BB projects from this list: Frequently Asked Questions (SFML / Learn) I don’t know whether those wrappers were written by hand or generated using old Clang.jl, but ma…