Support for syntax highlighting in strings of embedded languages

[jeswr]

It would be nice to have support for syntax highlighting of SPARQL/RDF that appears as a string inside another file (in my case the main use would be for JavasScript / Typescript). In particular I'd like the following syntax to have the string highltighted with ttl syntax higlighting

const myTurtleString = /*ttl*/`
@prefix : <http://example.org/> .

:s :p :o .
`.

This can be achieved using embedded languages in vscode - see:

• https://code.visualstudio.com/api/language-extensions/embedded-languages
• HTML string inside TypeScript and JavaScript files? microsoft/vscode#2000