Introducing multi-backends (TRT-LLM, vLLM) support for Text Generation Inference

The latest update to the Text Generation Inference framework introduces multi-backend support, specifically for TensorRT-LLM (TRT-LLM) and vLLM. This enhancement allows practitioners to leverage optimized inference for large language models across different backends, potentially improving performance and resource efficiency. The integration of these backends facilitates better scaling and deployment of AI models in production environments, making it easier to optimize for latency and throughput.