[CSharp] Fix CSharpCompiler not downloading automatically
[CSharp] Fix CSharpCompiler not downloading automatically

Bintray changed their ETag format from MD5 to SHA2, which
was causing the compiler check in Oxide to error because of
how the old ETag was being handled and split.

Visagalis/Oxide,LaserHydra/Oxide,LaserHydra/Oxide,Visagalis/Oxide