Initial configurations

[alexeysp11]

Description

• It might be worth running the configuration mechanism if there is no data in the application's DB, or if it does not exist.
• In config extension, check if all folders and files were created.
• In config extension list all of the files, folders and databases in appconfig.json.
• Add a description of how to configure the application. Perhaps we could add this functionality to the application and prompt the user to initialize the database whenever the database is not found in the config file.
• File paths (SQL, databases, etc.) should not be hardcoded. Instead, consider using appsettings.json and restoring the file name using a "key" from the config file.