[commonmark] make html comments, html inlines, html blocks and links compliant

[Feder1co5oave]

Description

Parenthesis in links

• fixes Parse complicated url problem #366
• fixes Marked does not handle links with parentheses #690
• fixes URLs with parentheses are not converting properly. #619
• fixes Conversion failed link, there are () when #736
• fixes Trailing ) dropped in javascript links #586

Backslash escapes in links

• fixes Does not Handle Markdown Escapes In Link Href #829
• fixes Escaped characters are ignored in url's #229

HTML

• fixes a bunch of already closed issues (not gonna run through them all)
• fixes Add option to render Markdown inside <div> blocks #488
• fixes script inside a div is escaped even if sanitize set to false #1134
• fixes Prevent from parsing inside custom elements #1090
• does_not_fix Element names #1071 because it is against commonmark
• fixes If HTML style comments contain headings they do not work #1050
• fixes HTML following between two comments don't get recognized as HTML #1032
• closes Allow html tags to contain hyphens #833
• fixes code block containing line break with new line starting with html fails #501
• fixes a <textarea> parsing bug #303
• fixes Content of <script> tags is escaped when they are inside html tags and 'sanitize: false' #257
• fixes Auto-linking - cm_autolinks test #1092
• fixes <foo> is parsed as HTML element even if < is escaped with \ #1140
• fixes HTML Attributes without quote is broken #1141 and closes Support HTML attributes without quotes (Fix #1141) #1142
• fixes Some markdown elements not parsed for content with inline html #1195

BREAKING-CHANGES:

See commit messages (look for "BREAKING CHANGE")
This deserves a minor version bump.

TODOs:

• parse inline markdown inside HTML blocks if parameter markdown=1
• handle backslash escapes across the whole document
• consider Remove substitution of non-breakable spaces #897 and re-enable test 478

Non-compliance with commonmark:

See commit messages (look for "NON-COMPLIANT")

Contributor

• Test(s) exist to ensure functionality and minimize regression
• new feature has been documented in the appropriate places.

Committer

In most cases, this should be a different person than the contributor.

• Draft GitHub release notes have been updated.
• CI is green (no forced merge required).
• Merge PR