Move to SuperInvoke

[Perksey]

Fixes #60
Tracker Ultz/SuperTools#1

[Perksey]

Outdated, invalid comment

SuperInvoke will not support generation of this static portion of the class, we'll have to write this manually:

        private SearchPathContainer _searchPaths;
        public override SearchPathContainer SearchPaths => _searchPaths ??= new GLCoreLibraryNameContainer();

        public GL(string path, ImplementationOptions opts)
            : base(path, opts)
        {
        }

        static GL()
        {
            LibraryLoader.CreateBuilder<GL>(Silk.NET.Core.Platform.SilkManager.Get<IGLSymbolLoader>());
        }

[Perksey]

Permutators (bodyless overloaders)

• Spans (for len>1 only)
• Strings
• Flow pointer (for len=1 only)
• Static count

Other overloaders