Add resources() to qml.TrotterProduct class

[Jaybsoni]

Context:
qml.TrotterProduct() now has error tracking functionality, but ins't compatible with resource tracking. This bug fix adds native resource tracking functionality to allow for compatibility with both pipelines.

Description of the Change:
Inherit from ResourcesOperation class as well and directly implement the resource method.

Benefits:
Allows for tracking resources without decomposing the template.

Possible Drawbacks:
If we change the target gate-set or want to decompose further, then this method is no longer accurate.

Related GitHub Issues:
Replicating most of this PR post release.

[github-actions]

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[Jaybsoni]

[sc-62523]

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.66%. Comparing base (2100476) to head (1e5e001).
Report is 255 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5680      +/-   ##
==========================================
+ Coverage   99.51%   99.66%   +0.14%     
==========================================
  Files         415      415              
  Lines       39985    39505     -480     
==========================================
- Hits        39791    39372     -419     
+ Misses        194      133      -61     

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[soranjh]

Thanks @Jaybsoni, please note my minor comments before merging.

[trbromley]

Thanks @Jaybsoni!

[obliviateandsurrender]

Thanks @Jaybsoni, looks good to me! Optionally, you might want to add an integration test with qml.Tracker too.

[trbromley]

Thanks @Jaybsoni!