More plotly results annotations

[Heiner92]

Added more information on hover of results inside plotly graphs.

Note: I had to manually adjust the _version.py of pandapower in order to make the tests work. The reason being that the file-format version is already adjusted and does not match with the package version.

With the next release you would either have to change to a new main version 3.0 or change the logic in convert_format

[vogt31337]

Thanks for your contribution. But could you please change the _version back to it's original? Since with the new release, it will be version 3.0.0.

[Heiner92]

Thanks for your contribution. But could you please change the _version back to it's original? Since with the new release, it will be version 3.0.0.

Of course! I changed the version back. As a result some of the automatic tests should now fail.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 14 lines in your changes missing coverage. Please review.

Project coverage is 75.98%. Comparing base (11af12c) to head (f50ff97).
Report is 19 commits behind head on develop.

Files with missing lines	Patch %	Lines
pandapower/plotting/plotly/pf_res_plotly.py	0.00%	14 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #2375      +/-   ##
===========================================
- Coverage    76.00%   75.98%   -0.03%     
===========================================
  Files          282      282              
  Lines        32950    32961      +11     
===========================================
  Hits         25045    25045              
- Misses        7905     7916      +11     

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