Add ca_cert_identifier Parameter

Allow optional identifier of the CA certificate for DB instance(s)

Add Storage_Type Parameter

Adding the ability to specify Storage_Type in order to enable "I/O Optimized".

Update Defaults Relating to Backups

Updated the default values for backup_retention_period and preferred_backup_window to match the AWS Backup standard.

Allow additional cluster tags

Useful for adding a backup tag to the db cluster

Allow major version upgrade

Merge pull request #2 from ahmetzeytindali:main

Expose allow_major_version_upgrade

Enable different instance type for replicas

Merge pull request #1 from nikola-acuris/main

Ability to specify different instance type for replicas

Initial terraform 0.12 release

1.0.0

upgraded to terraform 0.12