v2.4.0-RC1

Release notes

• Bump to powsybl core 4.4.0-RC1 (#274)
• Size and viewbox computed and inserted in SVG (#270)
• Introduce bus connection nodes (#241, #265), which replace
  • bus breaker connection nodes for bus breaker topology
  • fictitious disconnectors for node breaker topology
• Standardize ids of fictitious nodes (internals, bus connections, transformers) and of transformer edges (#266, #267)
• Generalize the use of the Point object, replacing List for snakelines (#249)
• Various fixes:
  • Remove 0 degree rotations (#259)
  • TopologicalStyleProvider correction and optimization (#269)
  • Fix display of buses directly connected to a bus (#248)
  • Fix bugs in substation layouts (#263)
  • Fix snakelines overlapping transformers and labels unexpected rotation (#260)
  • Force layout: avoid duplicating force in case of duplicated edge (#264)
• Test parameter to allow overriding test references (#268)
• Add slack link in README.md (#257)