[WIP] Add resource methods to some templates (TrotterProduct, Exp, StatePrep, QPE)

[Jaybsoni]

Context:
Adding resource methods to various templates in the new resource estimation framework.

Description of the Change:

Benefits:

[github-actions]

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Please edit doc/releases/changelog-dev.md with:

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[Jaybsoni]

[sc-79016]

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.60%. Comparing base (64fac4a) to head (27024b4).
Report is 9 commits behind head on resource_symbolic_decomps.

Additional details and impacted files

@@                    Coverage Diff                     @@
##           resource_symbolic_decomps    #6677   +/-   ##
==========================================================
  Coverage                      99.60%   99.60%           
==========================================================
  Files                            476      476           
  Lines                          45232    45232           
==========================================================
  Hits                           45055    45055           
  Misses                           177      177           

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[willjmax]

Some changes needed to make this behave in a way that is consistent with other symbolic ops. Also, seems like there is way too much stuff in trotter.py.