support hugeint

[wangfenjin]

close #27

Hi @aarashy , this commit will support hugeint

[codecov]

Codecov Report

Merging #28 (1fee2eb) into main (38cd5fe) will increase coverage by 0.06%.
The diff coverage is 92.85%.

@@            Coverage Diff             @@
##             main      #28      +/-   ##
==========================================
+ Coverage   73.36%   73.42%   +0.06%     
==========================================
  Files          25       25              
  Lines        2358     2371      +13     
==========================================
+ Hits         1730     1741      +11     
- Misses        628      630       +2     

Impacted Files	Coverage Δ
src/statement.rs	90.22% <66.66%> (-0.37%)	⬇️
src/row.rs	67.18% <100.00%> (-0.14%)	⬇️
src/types/from_sql.rs	72.44% <100.00%> (+2.10%)	⬆️

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