Issue #3513675: Create tools needed to create an agent

config/schema/ai_agents.schema.yml

src/Entity/AiAgent.php

src/Form/AiAgentForm.php

src/Plugin/AiFunctionCall/AddAiAssistantAgentAction.php

...AiFunctionCall/Children/CreateAgentConfigToolsEnabled.php

src/Plugin/AiFunctionCall/CreateAgentConfig.php

src/Plugin/AiFunctionCall/GetConfigSchema.php

src/Plugin/AiFunctionCall/GetToolExecuteCode.php

src/Plugin/AiFunctionCall/ListAiTools.php