Added DO Database endpoints

[MSAdministrator]

Adding the capability to do the following within the DigitalOcean Database endpoints:

• Database Clusters, Replicas, Database Users, and Databases within a cluster
  • Create
  • Destroy
  • List
  • Get

Additionally, Database clusters can be:

• Resized
• Migrated
• Maintenance Window Set

[MSAdministrator]

Any thoughts on this?

[koalalorenzo]

It looks like tests are missing

[orn0t]

The lack of tests is only reason PR isn't merged yet? Can fix that if so.

[MSAdministrator]

Sorry all, I have not had the time to write the tests. @orn0t if you want to go right ahead.

[KasparWe]

@MSAdministrator could u also implement endpoints for databases itself?

MY_DATABASE_CLUSTER.add_database(name='myNewDatabase') https://developers.digitalocean.com/documentation/v2/#add-a-new-database

MY_DATABASE_CLUSTER.delete_database(name='myOldDatabase') https://developers.digitalocean.com/documentation/v2/#delete-a-database

MY_DATABASE_CLUSTER.list() https://developers.digitalocean.com/documentation/v2/#list-all-databases

MY_DATABASE_CLUSTER.add_user(name='myNewUser') https://developers.digitalocean.com/documentation/v2/#add-a-database-user

MY_DATABASE_CLUSTER.remove_user(name='myOldUser') https://developers.digitalocean.com/documentation/v2/#remove-a-database-user

And if the database engine is mysql it would be super cool the change to auth method
MY_DATABASE_USER.reset_mysql_auth_method(method='caching_sha2_password') https://developers.digitalocean.com/documentation/v2/#reset-a-database-user-s-mysql-authentication-method

Many thanks for your contributions to this project.

[KasparWe]

@MSAdministrator if you need help writing tests just ping me :)