maro-0.2.4a1 🚀

• Add higher Python version 3.8, 3.9 (#398)
• Refinement for some core modules, including more type hints, better coding style, small interface adjustment, potential bug fix
  • Core & Abstract Business Engine refinement (#392)
  • Event Buffer refinement (#389)
  • Interface updates for SimRandom to better support scenario buildings (#401, #400)
• CIM scenario refinement (#400)
  • Disable auto action type detection, i.e., requires for explicit ActionType (#399)
  • Data processing updates, including data generation part and real data loader part (#395)
  • Some testing program updates, and enlarge the test coverage (#395)
• Examples update
  • OnlineLP for Citi Bike: change the default solver from GLPK to CBC (#391)