[Enhancement] Register Model API return model_id and Deploy Model API return deployment results

[Zhangxunmt]

In remote inference, we reuse the same API workflow in the Register and Deploy APIs. These 2 APIs both only return task_id in the response. Users have to use Get Task API to obtain the results for the Register and Deploy model Results.

This workflow can be improved that 1) register model_id included in the Register_Model API response and 2) Deployment status included in the Deploy_Model API response.

So, after the improvement. The overall workflow will be:

1. Create a connector.
2. Register a model. (Get Task not needed anymore)
3. Deploy the model. (Get Task not needed anymore)
4. Predict the model.

[Zhangxunmt]

#1329
#1336