Add Stream JSON parser

[Undertone0809]

🚀 Feature Request

Currently, we cannot enable stream if setting output schema. Eg:

from typing import List
import promptulate as pne
from pydantic import BaseModel, Field

class LLMResponse(BaseModel):
    provinces: List[str] = Field(description="All provinces in China")

response: LLMResponse = pne.chat(
    messages="Please tell me all provinces in China.",
    output_schema=LLMResponse,
    model="gpt-4-1106-preview",
    stream=True,
)
print(response.provinces)

Need to build a json parser to parse stream type json data like this:

[Undertone0809]

Here to see how to solve:

• https://twitter.com/yetone/status/1784487439610126426
• https://twitter.com/kfhedRk3lXofRIB/status/1789169786209132953