Cross-link matrix methods image and column_space

[Sandstorm831]

This is my pull request originally created on trac, which I thought pushing on github.
Fixes #33548

[Sandstorm831]

Hello everyone, I have created this pull request in view of changes committed by me in the open issue #33548 ,Please tell if anything else needs to be done to merge this pull request.

[mezzarobba]

The changes look good to me. It would be better to keep a single commit with the final version of the changes instead of adding 3 additional useless commits to the history, though.

[Sandstorm831]

Sir I would rebase my branch shortly, actually my system isn't working properly for few days, so it is taking time.

[codecov-commenter]

Codecov Report

Base: 88.59% // Head: 88.59% // Increases project coverage by +0.00% 🎉

Coverage data is based on head (0dc758a) compared to base (104dde9).
Patch has no changes to coverable lines.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop   #34972   +/-   ##
========================================
  Coverage    88.59%   88.59%           
========================================
  Files         2136     2136           
  Lines       396142   396142           
========================================
+ Hits        350948   350953    +5     
+ Misses       45194    45189    -5     

Impacted Files	Coverage Δ
src/sage/quadratic_forms/random_quadraticform.py	90.00% <0.00%> (-6.00%)	⬇️
src/sage/crypto/util.py	91.37% <0.00%> (-5.18%)	⬇️
src/sage/interfaces/qsieve.py	71.30% <0.00%> (-2.61%)	⬇️
src/sage/rings/polynomial/pbori/parallel.py	59.82% <0.00%> (-1.79%)	⬇️
src/sage/modular/hecke/algebra.py	94.65% <0.00%> (-1.07%)	⬇️
src/sage/homology/matrix_utils.py	87.15% <0.00%> (-0.92%)	⬇️
src/sage/schemes/elliptic_curves/formal_group.py	93.51% <0.00%> (-0.55%)	⬇️
src/sage/graphs/generic_graph.py	89.12% <0.00%> (-0.42%)	⬇️
src/sage/cpython/_py2_random.py	74.79% <0.00%> (-0.42%)	⬇️
src/sage/schemes/elliptic_curves/hom_velusqrt.py	94.09% <0.00%> (-0.40%)	⬇️
... and 17 more

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[mezzarobba]

Thanks!