Added parity transformation for issue #4881

[ddhawan11]

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Context:
Parity transform is added to map fermionic operators to qubit operators.

Description of the Change:

Benefits:

Possible Drawbacks:

Related GitHub Issues:

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (cfe2991) 99.69% compared to head (2b971e0) 99.68%.
Report is 2 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #4928      +/-   ##
==========================================
- Coverage   99.69%   99.68%   -0.01%     
==========================================
  Files         393      393              
  Lines       35864    35641     -223     
==========================================
- Hits        35753    35529     -224     
- Misses        111      112       +1     

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[Jaybsoni]

Overall great work @ddhawan11! This feature looks good and seems to be working as expected! Just a few small questions and clarifications to address and I will be happy to approve! 💯

Feel free to request a re-review when you are ready, otherwise I am happy to answer any questions or concerns you have in the comment threads below.

Thanks,

[soranjh]

Thanks @ddhawan11, looks good to go. Just make sure to sync with master properly.

[trbromley]

Thanks @ddhawan11 for contributing! This PR should make it out as part of our 0.35 release on March 5th.

We often tag contributors in our release marketing on Twitter/X. If you would optionally like to be tagged, please could you share your username?

[ddhawan11]

My twitter/X username is @ddhawan_21.