[Orchestration Convenience] Typed model parameters

[newtork]

Would be helpful for demo purposes and general usability.

+ import static com.sap.ai.sdk.orchestration.OrchestrationAiModel.Parameter.*;

OrchestrationAiModel customGPT4O =
    OrchestrationAiModel.GPT_4O
-       .withParams(
-           Map.of(
-               "max_tokens", 50,
-               "temperature", 0.1,
-               "frequency_penalty", 0,
-               "presence_penalty", 0))
+       .withParam(MAX_TOKENS, 50)
+       .withParam(TEMPERATURE, 0.1)
+       .withParam(FREQUENCY_PENALTY, 0)
+       .withParam(PRESENCE_PENALTY, 0)
        .withVersion("2024-05-13");

[newtork]

As discussed in todays (after) daily..

• We want to offer API (via fields, methods or classes) for the available parameter keys.
• We can't reasonably maintain the full mapping of LLM provider / model parameters.
• We can carefully(?) assume a very small subset of keys to be available for all LLM providers.

How to translate that to code, needs to be aligned still.

[jjtang1985]

The API looks good!
Very helpful.

[MatKuhr]

Otherwise LGTM. Maybe we can add the link to https://help.sap.com/docs/sap-ai-core/sap-ai-core-service-guide/harmonized-api somewhere in the Javadoc / sample code / docs

[MatKuhr]

LGTM