### Description

Authentication using OAuth for Databricks Service Principals is now in Public Preview.  I would like to implement this into the Databricks Hook.   By adding "service_principal_oauth" as a boolean value set to `true` in the extra configuration, the Client Id and Client Secret can be supplied as a username and password.

https://docs.databricks.com/dev-tools/authentication-oauth.html

### Use case/motivation

Before Authentication using Oauth the only way to use the Databricks Service Principals was by another user account performing a token request on-behalf of the Service Principal.  This process is difficult to utilize in the real world, but this new way of collecting access tokens changes the process and should make a big difference.

### Related issues

_No response_

### Are you willing to submit a PR?

- [X] Yes I am willing to submit a PR!

### Code of Conduct

- [X] I agree to follow this project's [Code of Conduct](https://github.com/apache/airflow/blob/main/CODE_OF_CONDUCT.md)

"""
    Tests for DatabricksHook.
    """
    @provide_session
    def setup_method(self, method, session=None):
        conn = session.query(Connection).filter(Connection.conn_id == DEFAULT_CONN_ID).first()
        conn.host = HOST
        conn.login = LOGIN
        conn.password = PASSWORD
        conn.extra = None
        session.commit()
        self.hook = DatabricksHook(retry_delay=0)
    def test_user_agent_string(self):
        op = "DatabricksSql"
        hook = DatabricksHook(retry_delay=0, caller=op)
        ua_string = hook.user_agent_value
        assert ua_string.endswith(f" operator/{op}")
    def test_parse_host_with_proper_host(self):
        host = self.hook._parse_host(HOST)
        assert host == HOST
    def test_parse_host_with_scheme(self):