Anthropic: Support tools

[langchain4j]

Context

Anthropic recently began supporting tools: https://docs.anthropic.com/claude/docs/tool-use

Change

This PR adds support for tools in AnthropicChatModel.
AnthropicStreamingChatModel does not support tools yet, because Anthropic does not support tools when streaming.

Checklist

Before submitting this PR, please check the following points:

• Test in AiServicesWithToolsIT
• I have added unit and integration tests for my change
• All unit and integration tests in the module I have added/changed are green
• All unit and integration tests in the core and main modules are green
• I have added/updated the documentation
• I have added an example in the examples repo (only for "big" features)
• I have added my new module in the BOM (only when a new module is added)

Checklist for adding new embedding store integration

• I have added a {NameOfIntegration}EmbeddingStoreIT that extends from either EmbeddingStoreIT or EmbeddingStoreWithFilteringIT

[daixi98]

LGTM