Add tag_transformers remove_tags, index_tags.

[babacry]

• remove tags: remove given tags via either target_tags or remove_if fn.

• Index tags: iterate the whole circuit and index the same tags with sub_ids, e.g.,

X["tag"]-Y["tag"]  --transformer.index_tags(target_tags={"tag"})--> X["tag_0"]--Y["tag_1"]

Context: to be used in #6994.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.67%. Comparing base (2635656) to head (c69be2a).
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #7306      +/-   ##
==========================================
- Coverage   98.67%   98.67%   -0.01%     
==========================================
  Files        1109     1111       +2     
  Lines       96863    96924      +61     
==========================================
+ Hits        95580    95636      +56     
- Misses       1283     1288       +5     

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[babacry]

@NoureldinYosri Tag transformers! could you help reivew?

[NoureldinYosri]

thanks @babacry ... great work