[ADVICE] Support log export

[Puiching-Memory]

🤪 Features description [Please make everyone to understand it]

The plan will support exports in the following formats:

• [ ] csv
• [ ] txt
• [ ] json
• [ ] db(sqlite3)
• [ ] html (single)
• [ ] pdf

After exporting, we can provide compression in the following formats:

• [ ] zip
• [ ] rar
• [ ] 7zip
• [ ] tar
• [ ] gzip

Of course, we also need the ability to load the exported logs back:

• [ ] decode
• [ ] unzip

👍 What problem does this feature solve

https://github.com/SwanHubX/SwanLab/issues/360 https://github.com/SwanHubX/SwanLab/issues/166

👾 What does the proposed API look like

swanlab.export(log_path,format,using_zip)
swanlab.import(log_file,save_path)

cil

swanlab export --log_path {} --format {} --using_zip {}
swanlab import --log_file {} --save_path {}

[SAKURA-CAT]

我比较好奇，这个功能的主要用途在于什么地方呢？我没有太理解