[Feature Request]: Database plugin query comment injection

### What would you like to happen?

Hello, opening this feature request as a follow-up to this thread: https://chat.project-hop.org/hop/pl/sx5ye8z5ntf9xyu9eab1ibgqwy. My team is developing our own Hop database plugin (i.e. extending `BaseDatabaseMeta`) and have a use case in which we would like to include a comment in every SQL query sent using our custom database plugin. Ideally, this functionality would be specified in the `IDatabase` interface and available to implement/override in our plugin implementation. This would be similar to the existing: `getConnectSql()` method of the `IDatabase` interface. So something like:
```
interface IDatabase {
String getSqlComment();
}
```
Then this `getSqlComment()` method could be called by the `Database` class when executing queries, similar to the `Database` class calling `getConnectSql()` when connecting. Happy to answer any questions, thanks for the consideration!

### Issue Priority

Priority: 3

### Issue Component

Component: Database

Start by reading the IDatabase interface, BaseDatabaseMeta, and the Database class, comparing the requested behavior with getConnectSql() and locating where queries are executed. Check existing database-related tests if present; done means custom database plugins can provide a SQL comment and queries sent through Database consistently include it.

Written by the indexing model from the issue text.