Can the ambient type declarations *.d.ts files be factored out?

[samreid]

Currently we must list the ambient type declarations in each tsconfig file. I tried factoring them out, but it seems factoring out *.d.ts files is not supported as described in microsoft/TypeScript#29002

So this will probably be closed with won't fix, but self-assigning to check a bit further first.

[samreid]

Also, a note to put this in the quick start guide or to add these all eagerly.

[samreid]

This is now a duplicate of #1121, closing.