In the mongodb-ts-autocomplete package, add a function for converting a schema of type MongoDBJSONSchema into a typescript type as a string.

ie. port toTypescriptTypeDefinition() from the PoC to work with MongoDBJSONSchema. Take databaseName, collectionName and schema as parameters.

Preferentially use bsonType if it exists, falling back to using standard json-schema fields to determine the appropriate field types.