[PPDiffusers]add t2v model

[westfish]

PR types

New features

PR changes

Models

Description

推理脚本：

import paddle
from ppdiffusers import TextToVideoSDPipeline
from ppdiffusers.utils import export_to_video

pipe = TextToVideoSDPipeline.from_pretrained(
    "damo-vilab/text-to-video-ms-1.7b", 
    from_hf_hub=True,
    from_diffusers=True
)
prompt = "Spiderman is surfing"

video_frames = pipe(prompt).frames
video_path = export_to_video(video_frames, output_video_path='spider_man.mp4')

生成效果如下：

[paddle-bot]

Thanks for your contribution!

[codecov]

Codecov Report

Merging #5529 (f891fd5) into develop (c682b3f) will increase coverage by 0.00%.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           develop    #5529   +/-   ##
========================================
  Coverage    59.42%   59.43%           
========================================
  Files          482      482           
  Lines        68103    68122   +19     
========================================
+ Hits         40473    40486   +13     
- Misses       27630    27636    +6     

see 15 files with indirect coverage changes

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[westfish]

review相关部分已全部修改

[JunnYu]

LGTM