Please add `ms-mssql.mssql`

[amvanbaren]

repo: https://github.com/Microsoft/vscode-mssql
releases: https://github.com/Microsoft/vscode-mssql/releases

cc @tfroment

[petetronic]

Thank you! Or at least, catch up to the latest versions?
#855

[jalexanderII]

Open VSX seems to have an error on the extension.

[jthomasmock]

Bumping this -- would love to see an updated version