Typescript compatibility

[ElGussy]

Add index.d.ts file for typescript compatibility, correct the build error and change the example so it can used the last three js version

[ElGussy]

Not ready at the moment (I need to check the index.d.ts file before)

[gitlarky]

I encounter the same problem when building python version, why not just provide a compiled python version? I actually had one compiled python version, but it didn't work on python3.10, even when running simply
import verb
gives the following error:
up.async.handleError(e)
So I decide to compile a new one.
Not sure it will work or not, right now I cannot even get it compiled.
Used to think verb is a very clean made NURBS lib, got many code build on it. Hope it can be solved.

[z3dev]

@ElGussy can you rebase these changes on top of 3.0? The code changes should not be necessary now.