[ NEW PAGE ] Debug the transpiler pipeline

[javabster]

What the new page should cover:

• Callback
• possible shoutout to ecosystem project - TreBugger
• partially-transpile subcircuits (?)

SME collaborators (involve for planning and review):

@mtreinish, @1ucian0 , Kevin K

Existing resources to build upon

• https://medium.com/qiskit/qiskit-trebugger-f7242066d368
• https://github.com/Qiskit/documentation/blob/migrate-open-source-docs/qiskit-docs/tutorials/circuits_advanced/04_transpiler_passes_and_passmanager.ipynb

[abbycross]

Is this still relevant?