feat(Topology/Algebra/Module/Complement): bundle prodEquivOfIsCompl and quotientEquivOfIsCompl, add ContinuousLinearMap.ofIsTopCompl

[sharky564]

This PR completes the three TODO items listed at the top of Mathlib/Topology/Algebra/Module/Complement.lean (introduced in #38547). Submodule.prodEquivOfIsCompl is shown to be a homeomorphism if and only if the two submodules are topological complements. The analogous characterisation for Submodule.quotientEquivOfIsCompl is also provided, and ContinuousLinearMap.ofIsTopCompl is defined as the continuous version of LinearMap.ofIsCompl, taking continuous linear maps from complementary submodules and producing the induced continuous linear map on the whole space.

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[github-actions]

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[github-actions]

PR summary 834e51690b

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

+ IsCompl.isTopCompl_iff_continuous_quotientEquiv
+ IsTopCompl.coe_prodEquiv
+ IsTopCompl.coe_prodEquiv_symm
+ IsTopCompl.coe_quotientEquiv
+ IsTopCompl.coe_quotientEquiv_symm
+ IsTopCompl.prodEquiv
+ IsTopCompl.prodEquiv_apply
+ IsTopCompl.prodEquiv_symm_apply
+ IsTopCompl.quotientEquiv
+ IsTopCompl.quotientEquiv_apply
+ IsTopCompl.quotientEquiv_apply_mk
+ IsTopCompl.quotientEquiv_symm_apply
+ _root_.IsCompl.isTopCompl_iff_continuous_prodEquiv_symm
+ _root_.IsCompl.isTopCompl_iff_isHomeomorph_prodEquiv
+ coe_ofIsTopCompl
+ continuous_prodEquivOfIsCompl
+ ofIsTopCompl
+ ofIsTopCompl_add
+ ofIsTopCompl_apply_left
+ ofIsTopCompl_apply_right
+ ofIsTopCompl_eq
+ ofIsTopCompl_zero
+ range_ofIsTopCompl

You can run this locally as follows

## from your `mathlib4` directory:
git clone https://github.com/leanprover-community/mathlib-ci.git ../mathlib-ci

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

## more verbose report:
../mathlib-ci/scripts/pr_summary/declarations_diff.sh long <optional_commit>

The doc-module for scripts/pr_summary/declarations_diff.sh in the mathlib-ci repository contains some details about this script.

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No changes to strong technical debt.

No changes to weak technical debt.