feat: Expand Oracle Database v1 API to add support for Exadata Exascale (ExadbVmCluster, ExascaleDbStorageVault), Base Database (DbSystem, Database, PluggableDatabase), and Networking (OdbNetwork, OdbSubnet). Adds enhance... (#8674)

* feat: Expand Oracle Database v1 API to add support for Exadata Exascale (`ExadbVmCluster`, `ExascaleDbStorageVault`), Base Database (`DbSystem`, `Database`, `PluggableDatabase`), and Networking (`OdbNetwork`, `OdbSubnet`). Adds enhancements for Autonomous Database, including Update, Switchover, and Failover operations, CMEK support, and improved disaster recovery fields. Also includes new helper resources for versions and configurations

docs: Updated comments for clarity and fixed typos
PiperOrigin-RevId: 821933017

Source-Link: googleapis/googleapis@55319b0

Source-Link: googleapis/googleapis-gen@f8b50d2
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