feat(types): map types to builtins

[leejayhsu]

Change Summary

To allow field names to shadow builtin type names , prepend these builtin types with _.

from builtins import bool as _bool
from builtins import int as _int
from builtins import float as _float
from builtins import str as _str

Closes #188.

Checklist

• Unit tests for the changes exist
• Tests pass without significant drop in coverage
• Documentation reflects changes where applicable
• Test snapshots have been updated if applicable

Agreement

By submitting this pull request, I confirm that you can use, modify, copy and redistribute this contribution, under the terms of your choice.

[codecov]

Codecov Report

Merging #395 (bb754b5) into main (56a365c) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #395   +/-   ##
=======================================
  Coverage   94.14%   94.14%           
=======================================
  Files         114      114           
  Lines        5789     5789           
  Branches      325      325           
=======================================
  Hits         5450     5450           
  Misses        300      300           
  Partials       39       39           

Impacted Files	Coverage Δ
src/prisma/generator/models.py	92.01% <ø> (ø)

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[RobertCraigie]

Great work, thank you so much! 💜

Apologies that it's taken so long for me to get around to merging this.