Feature/ucte converter

[SteffenMeinecke]

This PR adds a converter to get pandapower network data from UCTE-DEF (UCTE Data Exchange Format)

The UCTE-DEF is a simple data format for electric transmission systems for the exchange of grid data introduced by the Union for the Co-ordination of Transmission of Electricity (UCTE), the predecessor of the ENTSO-E.

What is included, as well?

• [ADDED] API function rename_std_type()
• [FIXED] default elements in toolbox function add_zones_to_elements()
• [FIXED] from_powerfactory() converter: error that crept in obj.GetAttributes(a) instead of obj.GetAttribute(a)
• [REMOVED] empty/deprecated tutorial new_optimization_model_pandamodels.ipynb
• [CHANGED] e2n logo is updated due to its official renaming

What is included in other PR already?

• [CHANGED] required standard type parameters are made available by function :code:required_std_type_parameters(), cf. making available required standard type parameters #2479

Maturity status
I think, it should be complete. Further refactoring can be done if there is ever time for it; as always.

Further remarks
The merge should be done as squash merge, I propose.

[vogt31337]

See comments.

[SteffenMeinecke]

See comments.

Thanks, @vogt31337 for your review and ideas!

[SteffenMeinecke]

@mrifraunhofer can you also have a look?

One remark: I structured the converter functionality from_ucte() and its internal functions similar to the cim converter, although I don't see the advantage of creating an UCTEParser object and an UCTE2pandapower object. The reason of my opinion is that only data are converted and the object will never be reused or codings can be reused by using another object instead of the converter objects. In terms of the converter, one can easily think of input in UCTE format -> converter function -> output in pandapower format which perfectly fits to function-oriented coding rather than object-oriented coding. What is your opinion and why did you and others code the CIM converter like this?

[codecov]

Codecov Report

Attention: Patch coverage is 90.54054% with 56 lines in your changes missing coverage. Please review.

Project coverage is 75.85%. Comparing base (0c11889) to head (4892efe).

Files with missing lines	Patch %	Lines
pandapower/converter/ucte/ucte_parser.py	81.57%	42 Missing ⚠️
pandapower/converter/ucte/ucte_converter.py	96.63%	11 Missing ⚠️
...ower/converter/powerfactory/pp_import_functions.py	0.00%	3 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #2498      +/-   ##
===========================================
+ Coverage    75.57%   75.85%   +0.27%     
===========================================
  Files          284      288       +4     
  Lines        33811    34398     +587     
===========================================
+ Hits         25554    26091     +537     
- Misses        8257     8307      +50     

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