Add tooling to allow for easy onchain memory integration with any agent

[jfrank-summit]

Add Onchain Memory Integration Tooling

Create a standardized toolkit to simplify the integration of onchain memory capabilities with any agent implementation. This will reduce development overhead and ensure consistent memory handling across different agent types.

Why

Standardized tooling will accelerate agent development by providing ready-to-use memory integration patterns, reducing boilerplate code, and ease the onboarding of developers to the Autonomys ecosystem.