#3024 Added Dynaflow Modelica model IEEE57

[joyelfeghali]

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• unit tests and non-regression tests were added (new model, new feature and bug fix)
• main documentation was updated (update of input/output file, 3rd party, model, repository organization, solver)
• example documentations were updated (new example in examples folder)
• the corresponding milestone was added in the ticket and in this PR
• if this PR modifies the parameters or inputs/outputs of a model/solver: the corresponding xsl was added in util/xsl and platform DB were updated
• if this PR modifies a dictionary: the corresponding french dictionary was updated

[joyelfeghali]

1 . Three test cases of IEEE 57-bus model were added :

• IEEE57 with no Events
• IEEE57 with line disconnection
• IEEE57 with HVDC and PhaseShifter models and line disconnection

2. Examples package were reorganized :

• IEEE57
• IEEE14
• Illustrative Examples

3. alphaTfo parameter/variable replaced thetaTfo

[joyelfeghali]

@rosiereflo I am not sure if we need to add updateXML here ? since the paths I modified are only for Modelica examples so technically they are not unit dynamic models, it is the whole test case.
I added the file, I can remove it if unecessary

[rosiereflo]

@rosiereflo I am not sure if we need to add updateXML here ? since the paths I modified are only for Modelica examples so technically they are not unit dynamic models, it is the whole test case. I added the file, I can remove it if unecessary

Hi this is always useful to add them so thanks!

[gaouizer]

seems OK to me