Add transformation information to --info

[WardBrian]

Closes #1461.

Bikeshedding: Should this new field be called constraint, transform, or something else?

Submission Checklist

• Run unit tests
• Documentation
  • If a user-facing facing change was made, the documentation PR is here:
  • OR, no user-facing changes were made

Release notes

The --info flag will now also give information about the transformations of each variable

Copyright and Licensing

By submitting this pull request, the copyright holder is agreeing to
license the submitted work under the BSD 3-clause license (https://opensource.org/licenses/BSD-3-Clause)

[codecov]

Codecov Report

Attention: Patch coverage is 67.74194% with 10 lines in your changes missing coverage. Please review.

Project coverage is 89.76%. Comparing base (5692dc4) to head (264a0f8).

Files with missing lines	Patch %	Lines
src/frontend/Info.ml	67.74%	10 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1462      +/-   ##
==========================================
- Coverage   89.82%   89.76%   -0.07%     
==========================================
  Files          63       63              
  Lines       10598    10625      +27     
==========================================
+ Hits         9520     9537      +17     
- Misses       1078     1088      +10     

Files with missing lines	Coverage Δ
src/frontend/Info.ml	84.44% <67.74%> (-9.21%)	⬇️