[4pt] Redux Create & Show Reservations [member 3]

[Festus Enning]

• Update Redux Store:
  • Define the initial state of the reservations in the store
  • Update the store with newly created reservations
• Add Redux Actions:
  • Create an action for creating a reservation
  • Create an action for updating the store with new reservations
• Add Redux Reducers:
  • Create a reducer for handling reservation creation
  • Create a reducer for updating the store with