include boilerplate for logging adapter version to database

[dataders]

There's a common pattern in adapters wherein the version is sent to a user_agent_string or application_name field when opening a connection that enables the underlying database's product team to have telemetry on the volume of dbt invocations that they're getting. This is normally found in the AdapterConnectionManager.open() method (e.g. DatabricksConnectionManager.open() )

If possible, it would be great to provide at least a template for adapter developers know that it's a good idea to do. Perhaps it can be mentioned in our how to guides in conjunction with unique_field(), which is used for dbt Labs's telemetry

dbt-database-adapter-scaffold/{{cookiecutter.project_name}}/dbt/adapters/{{cookiecutter.directory_name}}/connections.py

Lines 89 to 95 in 6145069

	# handle = myadapter_library.connect(
	# host=credentials.host,
	# port=credentials.port,
	# username=credentials.username,
	# password=credentials.password,
	# catalog=credentials.database
	# )