Recreate copy-paste test suite with original HTML clipboard contents as paste input

[thibaudcolas]

We need to redo the copy-paste test suite for two reasons:

1. The current pasting JSON files come from Draft.js v0.10.5. The Draft.js output will likely be different for newer versions of Draft.js, and it’s not worthwhile to store the output for each and every version.
2. I would like to implement custom rich text paste processing, which would also be dependent on having the source HTML available.

Progress

• applepages-chrome86-macos1015.html
• applepages-firefox83-macos1015.html
• applepages-safari-ios14.html
• applepages-safari14-macos1015.html
• draftjs-chrome86-macos1015.html
• dropboxpaper-chrome86-macos1015.html
• dropboxpaper-chrome86-win81.html
• dropboxpaper-edge16-win10.html
• dropboxpaper-firefox83-macos1015.html
• dropboxpaper-firefox83-win81.html
• dropboxpaper-ie11-unsupported-strippastedstyles-win81.html
• dropboxpaper-ie11-unsupported-win81.html
• dropboxpaper-safari-ios14.html
• dropboxpaper-safari14-macos1015.html
• googledocs-chrome86-macos1015.html
• googledocs-chrome86-win81.html
• googledocs-edge16-win10.html
• googledocs-firefox83-macos1015.html
• googledocs-firefox83-win81.html
• googledocs-ie11-strippastedstyles-win81.html
• googledocs-ie11-win81.html
• googledocs-safari-ios14.html
• googledocs-safari14-macos1015.html
• word-safari-ios14.html
• word2010-chrome86-win81.html
• word2010-firefox83-win81.html
• word2010-ie11-noequation-strippastedstyles-win81.html
• word2010-ie11-noequation-win81.html
• word2016-chrome63-macos1015.html
• word2016-word2010doc-chrome63-win.html
• word2016-word2010doc-edge16-win.html
• word2016-word2010doc-firefox83-win.html
• word2016-word2010doc-ie11-win.html
• word2016-word2016macosdoc-chrome63-win.html
• word2016-word2016macosdoc-edge16-win.html
• word2016-word2016macosdoc-firefox83-macos1015.html
• word2016-word2016macosdoc-firefox83-win.html
• word2016-word2016macosdoc-ie11-win.html
• word2016-word2016macosdoc-safari14-macos1015.html
• wordonline-chrome86-macos1015.html
• wordonline-chrome86-win81.html
• wordonline-edge16-win10.html
• wordonline-firefox83-macos1015.html
• wordonline-firefox83-win81.html
• wordonline-safari14-macos1015.html

Pages 10.3.5
macOS 10.15.6
Chrome 86.0.4240.198

20201122-html.zip