feat: Add new fields to conversation api

[javier-aliaga]

Description

Add new fields for conversation api

Issue reference

We strive to have all PR being opened based on an issue, where the problem or feature have been discussed prior to implementation.

Please reference the issue this PR will close: #1639

Checklist

Please make sure you've completed the relevant tasks for this PR, out of the following list:

• Code compiles correctly
• Created/updated tests
• Extended the documentation

[salaboy]

/LGTM .. all green so I think we can merge this

[siri-varma]

@javier-aliaga Quick question, should we also update/create the conversation api examples with these new fields ?

[javier-aliaga]

@siri-varma the problem is these new fields are only supported by some components but not the echo service.

I modified the examples to print the usage in case the model is present.

Let me work on the ResponseFormat, I would like to do a real test

[javier-aliaga]

@siri-varma I modified the examples to add the new fields, bear in mind this fields only works with a real llm, no changes expected using the echo service

[siri-varma]

LGTM. Thank you

[codecov]

Codecov Report

❌ Patch coverage is 83.75000% with 13 lines in your changes missing coverage. Please review.
✅ Project coverage is 79.24%. Comparing base (24f8b91) to head (2e17e44).
⚠️ Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
sdk/src/main/java/io/dapr/utils/ProtobufUtils.java	0.00%	11 Missing ⚠️
.../dapr/client/domain/ConversationRequestAlpha2.java	75.00%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #1640      +/-   ##
============================================
+ Coverage     79.19%   79.24%   +0.04%     
- Complexity     2111     2136      +25     
============================================
  Files           229      233       +4     
  Lines          6360     6437      +77     
  Branches        695      697       +2     
============================================
+ Hits           5037     5101      +64     
- Misses          971      984      +13     
  Partials        352      352              

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