Log Message:
litehtml: update to 0.9.

0.9

Improved blocks rendering by @tordex in #268
Refactor render_item based classes by @tordex in #269
Discard invalid color declarations by @stasoid in #274
Add litehtml-specific testing option in cmake by @charliewolf in #282
Basic implementation for css counters by @MicCalo in #281
Media_query: Treat unknown media type as none by @imzyxwvu in #283
Flex layout by @tordex in #285

0.8

fix: render_test._/"acid1.htm" test fails on x86 architecture

0.7

Many changes to improve rendering of inline and block elements.
Improved rendering performance
litehtml now passes Acid1 test
Removed some legacy code
Refactoring to make code more clean
Added additional rendering tests