* Allow css emmet completions when abbr contains period Fixes#44352
* Move css related workaround to cssMode #44352
* getEmbeddedParsedDocument is now not needed
* Show emmet completions everywhere inside the embedded css doc
* Get emmet completions from html,css extensions
* Resolve extensionsPath, use emmet results even if empty
* Support css abbr with :
* Refactoring
* Add some basic emmet tests
* Refactoring
* More tests