State of AngelScript bindings

[eugeneko]

Currently U3D has AngelScript in the same state as it was in Urho3D 1.8 -- half refactored, half WIP.
1vanK did quite a lot of work on binding generator and this work spanned years.

Since U3D forked from the middle of this work, AS is in weird state here. Bindings are not manual, but they use unfinished generator.

So I think U3D should either abandon AS at some point, rollback AS binding generator and restore manual AS bindings, or cherry-pick AS binding generator updates from Urho3D 1.8-1.9

[SirNate0]

I favor the 3rd option, cherry picking the binding generator from Urho3D. However, I am not likely to have time in the near future to do it myself - maybe I will get to it in the next year or so. So if others wish to do something else, or do it themselves, I wouldn't mind.