Update Java Conversation API with Tool Calling support

[alicejgibbons]

Update the existing SDK and create the HTTP java quickstart to use Tool calling and the v2alpha APIs.

[alicejgibbons]

@siri-varma can we update your existing PR for the SDK to include tool calling 🙏

[siri-varma]

I have put out the PR. Waiting for reviews

[alicejgibbons]

Thanks @siri-varma, I merged #1196 but the work here is to specifically add tool-calling support like was added here: https://github.com/dapr/quickstarts/pull/1208/files or here: #1209

[siri-varma]

I will put out a PR for tool calling today.

[siri-varma]

Sorry, I am running a little behind on this. Will put it out this week