[PLT-46] Add method / heurisrtics to extract original sdk method name from python trace

[vbrodsky]

Description

This is passed on to the api in the header and from there logged to DD in order to build dashboards

Fixes # (issue)

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[sfendell-labelbox]

Can we test for a match against .*_test.py or something, so we don't accidentally catch latest_whatever.py (e.g.) here

[vbrodsky]

good point ok

[sfendell-labelbox]

Kind of a nit: This is the only place we use call_info right? Can we just have it create the string directly? Or if you prefer it like this, at least replace the three calls with a single call?