chore: Add around tool calling execution

[He-Pin]

Add an extension point for tool calling

[ThomasVitale]

@He-Pin thanks for your contribution. Could you share some more details about your use case for such a change? Thanks!

[markpollack]

is this to implement a client side parallel tool execution feature?

[He-Pin]

We need the enhance the function input and result, and which can be rescheduled to a virtual thread pool tool. Otherwise, I have to using an AOP

[ThomasVitale]

I'd like to share the same input as the other task: #2853 (comment)

In addition to that, I should add that DefaultToolCallingManager should have been final, but it kind of slipped away. It's not designed to be extended, but only as a reference default implementation. So I wouldn't introduce abstract methods. The idea is to provide a custom implementation of the ToolCallingManager for customisations and extensions (possibly couple with the delegate pattern).

What do you think?

[He-Pin]

I need two things

1. Enhance the input and output of the call, an aop
2. Passing our ctx data without interfering the current toolcontext