feat(render): add new command to render final file

[Tieske]

recovers #874 including tests

[codecov-commenter]

Codecov Report

Patch coverage: 31.33% and project coverage change: -0.12% ⚠️

Comparison is base (aee76dd) 34.06% compared to head (3516359) 33.95%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #963      +/-   ##
==========================================
- Coverage   34.06%   33.95%   -0.12%     
==========================================
  Files         100      101       +1     
  Lines       12106    12214     +108     
==========================================
+ Hits         4124     4147      +23     
- Misses       7588     7666      +78     
- Partials      394      401       +7     

Files Changed	Coverage Δ
cmd/common.go	4.29% <0.00%> (ø)
cmd/common_konnect.go	6.71% <0.00%> (ø)
cmd/file.go	0.00% <ø> (ø)
cmd/file_convert.go	0.00% <0.00%> (ø)
cmd/file_render.go	0.00% <0.00%> (ø)
cmd/root.go	0.91% <0.00%> (-0.01%)	⬇️
cmd/validate.go	0.00% <0.00%> (ø)
file/writer.go	14.86% <23.52%> (+0.32%)	⬆️
file/readfile.go	73.15% <42.10%> (-12.22%)	⬇️
convert/convert.go	82.08% <56.81%> (-7.29%)	⬇️
... and 1 more

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[GGabriele]

Does this PR still need all the changes to the convert package now that an entire new command (render) has been added?

[Tieske]

Does this PR still need all the changes to the convert package now that an entire new command (render) has been added?

I removed the duplicate code from cmd/file_render.go, and left the changes in convert/convert.go. Reasoning; the convert package has tests, where the cmd package has not. So this seemed the better option.

[Tieske]

moved this to the 1.25 milestone (was 1.24)

[Tieske]

@GGabriele @zekth rebased and squashed. Should be ready to go now.