bump crengine: better conformance to the HTML Standard rendering

Includes:
- Hyphenation: update French.pattern
- [CI] Add stylelint to help prevent typos in CSS
- In-page footnotes: better handle duplicated ids
- lvrend: handle in-page footnotes in table <caption>
- lvstsheet: fix compiler warnings
- LVString: ignore CJK chars in lStr_findWordBounds()
- lvtext: AddLine(): handle some CJK + space edge case
- EPUB: look for EPUB3 cover even when EPUB2 cover advertized
- List items: proper per-specs positionning and sizing
- epub.css: add/use "@media (-cr-max-cre-dom-version: 20180527)"
- fb2def.h: add more HTML element and attributes names
- CSS: generic support for handling presentational hints
- CSS: add support for private -cr-apply-func:
- ldomDocumentWriterFilter: remove attribute to CSS conversion
- lvrend: more proper rendering of block images
- lvrend: keep margin_left/right updated when "auto"
- CSS: add support for handling HTML's align= attribute
- lvrend: fix HR and images positionning when floats involved
- epub.css, html5.css: minor updates for easier stylesheet switch
- epub.css, html5.css: major updates for better conformance
- fb2.css: fix CI stylelint warnings
Also update to libunibreak 6.0.

base

@@ -1 +1 @@
-Subproject commit ab2828199a6811bac3326f013bbb7051a8d1f73a
+Subproject commit 5c7d8bc2b5ca15938880711f75ddc045251e9625