Add types for TypeScriptWorker and missing LanguageServiceDefaults methods

[ecraig12345]

Update monaco.d.ts with a definition for TypeScriptWorker and a few of the types from typescript that it depends on, and use the proper return type for getTypeScriptWorker/getJavaScriptWorker.

To avoid polluting the monaco.languages.typescript module and its docs, I only copied in a few of the typescript types (lacking a better heuristic, the ones I need to use) and used any for the rest, with comments about the actual types. You can see what it would look like with all the types in this commit (note I had them in a separate monaco.languages.typescript.ts namespace at the time), and I could add them back if preferable.

Also update LanguageServiceDefaults types to add some methods that were missing, and update CompilerOptions to add newer compiler options.

Remove the declaration: true setting from tsconfig since the unqualified references to monaco in the generated files can cause problems in other projects (and since those generated files don't impact the final editor.api.d.ts).

[alexdima]

@ecraig12345 Do you then still need #50 ?

[ecraig12345]

@alexdima Probably not, and from some issues I saw I'm wondering if it actually created some problems since the declaration files contain references to monaco without any imports. (That works in the context of this project with how its tsconfig is set up, but isn't likely to work elsewhere.) So I just pushed a commit removing declaration: true.

[ecraig12345]

It would be nice if there was a way to directly generate the monaco.d.ts files from the source, so they don't get out of sync, but I'm guessing that would be a lot more complicated.

[alexdima]

👍 Thank you!

[orta]

<3