[BUG] BigInt Required

[BlackYuzia]

Hi there.
I used this lib, but I get a bad result.
When I get too big values for int I get bugs.
So, if your package parse types (like number, boolean and etc), could you add, in future, support for bigint? Thx.
Second choice is add option for ignore types

[cbartondock]

In case it's helpful here is a repl that verifies this complaint:

https://replit.com/@ChrisDock/Testing-node-steamvdf-for-long-strings