[Feat] Enable T5 inference and offload overlap for improved efficiency (#423)

Co-authored-by: gushiqiao <975033167@qq.ocm>

scripts/seko_talk/run_seko_talk_18_5090_base.sh

+#!/bin/bash
+
+lightx2v_path=/path/to/LightX2V
+model_path=/path/to/SekoTalk-Distill/
+
+export CUDA_VISIBLE_DEVICES=0
+
+# set environment variables
+source ${lightx2v_path}/scripts/base/base.sh
+
+export PYTORCH_CUDA_ALLOC_CONF=expandable_segments:True
+
+export SENSITIVE_LAYER_DTYPE=None
+
+python -m lightx2v.infer \
+--model_cls seko_talk \
+--task s2v \
+--model_path $model_path \
+--config_json ${lightx2v_path}/configs/seko_talk/5090/seko_talk_5090_bf16.json \
+--prompt  "The video features a male speaking to the camera with arms spread out, a slightly furrowed brow, and a focused gaze." \
+--negative_prompt 色调艳丽，过曝，静态，细节模糊不清，字幕，风格，作品，画作，画面，静止，整体发灰，最差质量，低质量，JPEG压缩残留，丑陋的，残缺的，多余的手指，画得不好的手部，画得不好的脸部，畸形的，毁容的，形态畸形的肢体，手指融合，静止不动的画面，杂乱的背景，三条腿，背景人很多，倒着走 \
+--image_path ${lightx2v_path}/assets/inputs/audio/seko_input.png \
+--audio_path ${lightx2v_path}/assets/inputs/audio/seko_input.mp3 \
+--save_result_path ${lightx2v_path}/save_results/output_lightx2v_seko_talk.mp4