[Merged by Bors] - chore: move pointwise set files to Algebra._.Pointwise

[YaelDillies]

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The remaining files depend on Data.Set.Pointwise.SMul, which I intend on reworking.

[github-actions]

PR summary 1a9a7b4ea4

Import changes for modified files

No significant changes to the import graph

Import changes for all files

Files	Import difference
Mathlib.Data.Set.Pointwise.Interval	-515
Mathlib.Data.Set.Pointwise.BigOperators	-511
Mathlib.Data.Set.Pointwise.Finite	-497
Mathlib.Data.Set.Pointwise.ListOfFn	-422
Mathlib.Algebra.Group.Pointwise.Set.ListOfFn	422
Mathlib.Algebra.Group.Pointwise.Set.Finite	497
Mathlib.Algebra.Group.Pointwise.Set.BigOperators	511
Mathlib.Algebra.Order.Group.Pointwise.Interval	515

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Declarations diff

No declarations were harmed in the making of this PR! 🐙

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.

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No changes to technical debt.

You can run this locally as

./scripts/technical-debt-metrics.sh pr_summary

• The relative value is the weighted sum of the differences with weight given by the inverse of the current value of the statistic.
• The absolute value is the relative value divided by the total sum of the inverses of the current values (i.e. the weighted average of the differences).

[kim-em]

bors merge

[mathlib-bors]

Pull request successfully merged into master.

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