Add group ids to configuration groups

[dibarbet]

Related to microsoft/vscode#273163 (comment)

[timheuer]

Sounds like we may also want to get ahead of this for csdevkit as well? I don't think we have grouping there (but I know there is a separate issue tracking putting grouping in to make more sense)

[dibarbet]

Sounds like we may also want to get ahead of this for csdevkit as well? I don't think we have grouping there (but I know there is a separate issue tracking putting grouping in to make more sense)

Could, but my read is it isn't necessary. Dev Kit only has a single group, and so the one group getting the automatic ms-dotnettools.csdevkit id would not be problematic.

Only would need it if they end up making the id a required field even if there is only a single group (but I suspect that would break a huge number of extensions out there and seems unlikely).