v1.0.0-alpha.5

• Added message templates as constants. (6a6cfed)
• Added XML comments in AdaptiveCardPrompt. (a4862ca)
• Reduce code to make it easier to read. (e57780d)
  Reduce the condition that checks if the working hour is not available.
• Removed the feature of sending appointment information to the patient by WhatsApp. (#127)
• Added unit tests for AvailabilityService. (#128)
• Separate seeding data from the entity configuration. (#129)
  • Removed WebHostEnvironment class. (3a7d8c1)
  • Renamed the methods that create seed data. (68ab486)
• Avoid coupling classes with DateTime.Now. (#58, #130)