feat(Analysis/PolarCoord): add versions for Lebesgue integral

[xroblot]

This PR is part of the proof of the Analytic Class Number Formula.

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[github-actions]

PR summary 67977ecdcb

Import changes for modified files

No significant changes to the import graph

Import changes for all files

Files	Import difference

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Declarations diff

+ FDerivAt_polarCoord_symm_det
++ lintegral_comp_polarCoord_symm

You can run this locally as follows

## summary with just the declaration names:
./scripts/declarations_diff.sh <optional_commit>

## more verbose report:
./scripts/declarations_diff.sh long <optional_commit>

The doc-module for script/declarations_diff.sh contains some details about this script.