Feature: lswap and lreverse commands

[abey79]

Description

New feature: lswap and lreverse commands.

Also:

• improved command testing stuff
• updated dependences

Checklist

• feature/fix implemented
• code formatting ok (black and isort)
• mypy vpype vpype_cli tests returns no error
• tests added/updated and pytest succeeds
• documentation added/updated
  • command docstring and option/argument help
  • README.md updated (Feature Overview)
  • CHANGELOG.md updated
  • RTD doc updated and building with no error (make clean && make html in docs/)

[codecov]

Codecov Report

Merging #300 (0c9bf49) into master (e5e1eca) will increase coverage by 0.30%.
The diff coverage is 97.27%.

@@            Coverage Diff             @@
##           master     #300      +/-   ##
==========================================
+ Coverage   91.85%   92.15%   +0.30%     
==========================================
  Files          50       50              
  Lines        3878     3938      +60     
  Branches      508      516       +8     
==========================================
+ Hits         3562     3629      +67     
+ Misses        210      206       -4     
+ Partials      106      103       -3     

Impacted Files	Coverage Δ
vpype/layers.py	80.55% <66.66%> (+3.41%)	⬆️
tests/test_commands.py	99.62% <97.14%> (+0.01%)	⬆️
tests/test_layers.py	100.00% <100.00%> (ø)
vpype_cli/layerops.py	97.97% <100.00%> (+0.92%)	⬆️
vpype/io.py	76.84% <0.00%> (+1.75%)	⬆️

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[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
0.0% Duplication