Changes to Create a new phase

the request property competition became required

the request property head_judge_artefact_descr became required

the request property judge_artefact_descr became required

the request property ranking_algorithm became required

the request property round became required

removed the request property head_judge_artefact_descr/artefact

removed the request property head_judge_artefact_descr/artefact_data

removed the request property judge_artefact_descr/artefact

removed the request property judge_artefact_descr/artefact_data

removed the request property ranking_algorithm/algorithm

removed the request property ranking_algorithm/algorithm_data

added ArtefactDescriptionYans ArtefactDescriptionRanking to the head_judge_artefact_descr request property oneOf list

added ArtefactDescriptionYans ArtefactDescriptionRanking to the judge_artefact_descr request property oneOf list

added RankingYanWeighted RankingAlgorithmRanking to the ranking_algorithm request property oneOf list

removed the enum value Finals of the request property round

removed the enum value Octofinals of the request property round

removed the enum value Prelims of the request property round

removed the enum value Quarterfinals of the request property round

removed the enum value Semifinals of the request property round

the round request property type changed from string to array

the request's body type changed from no type to object

the response's body type changed from no type to integer for status 200

the response's body type changed from no type to object for status 400

added the new optional request property competition

added the new optional request property head_judge_artefact_descr

added the new optional request property judge_artefact_descr

added the new optional request property ranking_algorithm

added the new optional request property round

added the optional property message to the response with the 400 status