Add Microsoft SQL Server support

[SockworkOrange]

What do you want to change?

I am one of the developers of the C# plugin. We published our plugin in the community and received a lot of feedback - mainly around the lack of support in SQL Server.
I took a look at the engines implementations and saw that in SQLite you use antlr to parse the SQL, and that antlr has the same kind of support for tsql (SQL Server's SQL dialect).

I want to propose that I will start working on an SQL Server iplementation, in the same manner as the SQLite one.
@doron050

What database engines need to be changed?

No response

What programming language backends need to be changed?

No response

[kyleconroy]

I updated the title and added the tag we use for all new engine requests. This one is unlikely to happen soon, mainly because I have larger plans for refactoring how we add new engines. That said it's most certainly on the roadmap.