448 make public example

[hiker]

Adds a script that removes all private and protected attributes (which is used in PSyclone's kernel extraction).
Added a chapter explaining the examples to the manual, added tests for examples (triggered in CI), and added me as author.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

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Additional details and impacted files

@@            Coverage Diff            @@
##             master     #450   +/-   ##
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  Coverage          ?   92.13%           
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  Files             ?       85           
  Lines             ?    13824           
  Branches          ?        0           
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  Hits              ?    12737           
  Misses            ?     1087           
  Partials          ?        0           

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[arporter]

Looks good Joerg, thanks for adding to the docs and adding tests. Just a bit of tidying required.

[hiker]

I also did some very minor pylint fixes. Strangely, black allows more than 80 characters per line, it undid some of my fixes :)

[arporter]

All good now, thanks for the tidying.
Yes, Black allows a slightly longer line-length because (their docs say) it resulted in a lot fewer broken lines.