Vertex AI adds CRUD and Generation for Agent Memories

The update introduces the projects.locations.memoryBanks.memories resource hierarchy. Key additions include create and delete methods (both implemented as Long Running Operations), a list method with filtering support for scope and topics, and a specialized generate method for bulk memory creation. While the resource path uses memoryBanks, the documentation indicates these are intended for use with ReasoningEngine instances, facilitating persistent state and long-term context across agentic workflows.