added support for C# fixes #180.
Support for C# methods and constructors (at least with patched FSharp.Compiler.Service commit, c5dfd4dd488f6dcd1024b0ed2b564ce9d2d414fa).
add enclosing assembly info to type and method (could be an important part in the docs).
order namespaces in AssemblyGroup
handle possible exceptions while processing members.