Add support for error tracking with TrotterProduct template

[Jaybsoni]

Context:
Adding support to compute the error for a given instance of qml.TrotterProduct. This is part of the push on error propagation in Pennylane

Description of the Change:
Using the paper "Theory of Trotter Error with Commutator Scaling" to implement upper-bounds on the additive error for the Suzuki Trotter Product formula.

• Created an error module: pennylane/resources/error, moved the base error.py file into this repository (similar changes for the tests)
• Created a trotter_error.py file in the error module which contains all of the helper functions along with the implementations for the _one_norm_error and _commutator_error functions.
• Updated the abstract ErrorOperation to change the error() from a property to a method. (associated changes in tests)
• Updated TrotterProduct to inherit from ErrorOperation and implemented the error() method.
• Added integration tests for the new error method in the TrotterProduct class.

Using this error method, we can benchmark the error in approximating time evolution using the Suzuki-Trotter product formulas:

[github-actions]

Hello. You may have forgotten to update the changelog!
Please edit doc/releases/changelog-dev.md with:

• A one-to-two sentence description of the change. You may include a small working example for new features.
• A link back to this PR.
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[Jaybsoni]

[sc-55441]

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.65%. Comparing base (54d43b8) to head (eb7df25).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5384      +/-   ##
==========================================
+ Coverage   99.63%   99.65%   +0.01%     
==========================================
  Files         399      401       +2     
  Lines       37125    36944     -181     
==========================================
- Hits        36990    36815     -175     
+ Misses        135      129       -6     

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[AmintorDusko]

Nice work! I left some nitpick suggestions, but feel free to ignore if sensible.

[DSGuala]

Looks good. Left a few small comments. I'm confused about the scaling of the error by changes in order and number of steps.

[DSGuala]

Looks good to me 👍

[Jaybsoni]

It doesn't break TortterProduct, Its just not compatible with the error computation. I added a warning to make this clear to users.