Support custom delimiters for separating SQL queries in .sql files

[PatrickJahner]

In our projects we work with large .sql files that contain multiple queries. For technical reasons, not all of these queries can be terminated with a semicolon (;).
Because of this, we separate individual queries using a custom delimiter.

Example:

sql_query_one
select
  username
from users

//--------------------------------------------------------//
sql_query_two
select
  family_name
from users

//--------------------------------------------------------//
sql_query_three
-- ...

It would be extremely helpful if the extension allowed defining a custom query delimiter (e.g. "//--------------------------------------------------------//" in our case) so that the editor can correctly detect, highlight, and navigate between separate queries.

This feature would improve working with large SQL files that cannot rely on ; as a terminator.

I really appreciate the project - fantastic work.
It's a pity that the extension is closed-source, otherwise I would gladly submit a pull request for this feature.