Add toBigInteger() to 128-bit and 256-bit integers

[lijamie98]

In Anchor Platform, we have to convert int128 to BigInteger. It would be nice for the SDK to support these functions as well for convenience.

I did not find any helper functions. Let me know if these functions already exist.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.18%. Comparing base (a1edad0) to head (4696f40).

Additional details and impacted files

@@            Coverage Diff            @@
##             master     #692   +/-   ##
=========================================
  Coverage     80.18%   80.18%           
  Complexity     1227     1227           
=========================================
  Files           213      213           
  Lines          4820     4820           
  Branches        412      412           
=========================================
  Hits           3865     3865           
  Misses          703      703           
  Partials        252      252           

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[overcat]

Hi @lijamie98, you can take a look at a series of classes under the scval package, such as ScvUint128. Does this meet your needs?

[lijamie98]

Hi @lijamie98, you can take a look at a series of classes under the scval package, such as ScvUint128. Does this meet your needs?

Yes that works. Can we make the class public?

[lijamie98]

oh, I can use Scv.fromInt128()