Provide Anthropic Claude streaming Function Calling support

[tzolov]

Currently provide Anthropic support only non-streaming function calling.
Extend the support for streaming similar to OpenAI, MistralAI, Gemini and Azure OpenAI.

[tzolov]

Fyi @Grogdunn , @didalgolab
as you've done some related work, you may find it interested to explore this as well.

[didalgolab]

@tzolov I'm going to look into this.