Provide GMP bindings as V module

[teaalltr]

https://gmplib.org/

Instead or as a complement to #11465

[dumblob]

Please not as part of the standard library - for that purpose it's insufficient (I'm out of time, but on request can provide links proving GNU MP inferiority compared to contemporary high-precision methods of calculation using binary floating points).

GNU MP would be nice as a binding (i.e. V module).

[teaalltr]

@dumblob thanks! P.S. i'm curious to take a look at those links 😄

[dumblob]

See vlang/vsl#65 .

And if you'll be fine with that feel free to rename this issue to "provide GMP bindings as V module" or just close it 😉.

[teaalltr]

@dumblob sure!