3.2.b) As DEVELOPERS, we want to ENSURE THERE IS ONLY ONE INSTANCE of the CSV DATABASE at any time so that the DATABASE IS CONSISTENTLY MANAGED.

[JaSNOHo]

Acceptance Criteria:

• Refactor the CSVDatabase class to follow the Singleton design pattern.
  • Ensure only one instance of the CSVDatabase exists at any given time.
• Couple the CSV file on the filesystem to this Singleton object so that it represents the single point of access for reading and storing cheeps in the database.
• Review various C# Singleton implementations (e.g., from C# in Depth) and select/adapt the most suitable approach for implementation.
• The Singleton implementation does not need to be thread-safe at this point.