Add chinese support in kokoto-tts by detecting chinese characters within
a text

This pull request introduces a new Gradio-based UI interface for Dora-rs
addressing issue #884 , providing both text and voice input
capabilities. Below are the most significant changes:

### Configuration:

*
[`node-hub/dora-gradio/demo.yml`](diffhunk://#diff-165f450ebc9fb4385dba716890aa15af1a7cbb3497242c456087792820c45bf6R1-R14):
Added a demo YAML configuration file to showcase how to set up the Dora
Gradio UI node and connect it with other nodes.

### Implementation:

*
[`node-hub/dora-gradio/dora_gradio/main.py`](diffhunk://#diff-c93bc18b7e40bb164ad2e094d5f051cb8df51909c385bc8f534cc2a54ee5d1a3R1-R133):
Implemented the main functionality of the Dora Gradio UI, including text
and voice input handling, real-time audio transcription using Whisper,
and integration with the Dora framework.

Adding a tokio runtime to export node system metrics using
opentelemetry.


![image](https://github.com/user-attachments/assets/74799a97-a51d-45dc-bb22-d01a96bc881f)
https://dora-rs.ai/docs/guides/Debugging/metrics

Adding environment variables to make it possible to build within
separate virtual environment.

This PR relates to #890. I used a procedural macro to refactor code and
adding new datatypes easily. What do you say about such approach
@haixuanTao .

This PR makes it possible to benchmark inference speed based on
inference engine.

In my case I was able to detect that for GGUF, the model runs twice as
fast as on transformers based config for qwen2.5 0.5B:

| path | date | average_duration (s) | max_duration (s) | min_duration
(s) | median_duration (s) | median_frequency | average_speed (tokens/s)
| max_speed (tokens/s) | min_speed (tokens/s) | median_speed (tokens/s)
| total_tokens |

|---------------------------|---------------------|----------------------|------------------|------------------|---------------------|------------------|---------------------------|-----------------------|-----------------------|---------------------------|--------------|
| dora-llama-cpp-python | 2025-03-17 15:45:25 | 0.03 | 0.09 | 0.03 |
0.03 | 37.76 | 222.73 | 233.59 | 69.38 | 226.54 | 6 |
| dora-transformers | 2025-03-17 16:20:33 | 0.07 | 0.40 | 0.05 | 0.06 |
16.15 | 96.37 | 111.81 | 15.14 | 96.90 | 6 |

#878 Issue Fixed

Flags added in this PR: 
- RET
- RSE
- NPY
- N
- I