Add stored procedure parameters to debug logging

[eemelisoderholm]

While the debug package can be used to see all queries and stored procedure executions, debugging proc-heavy applications is difficult since the log doesn’t contain any parameters.

AFAIK there’s no easy way to add global parameter logging without changing this package, correct me if I'm wrong.

This PR changes the stored procedure debug line to also contain all the provided parameters. Main drawback is additional noise in debug logs, but long strings in parameters are cut short to compensate.

[dhensby]

This is a cool idea, I like it - my only hesitation is that this may disclose sensitive information to logs, but on reflection the debug logs should only be used for debugging and not on production systems, so this should be safe enough.

[eemelisoderholm]

While this definitely adds sensitive information to logs whenever the debug environment variable is set, I'd argue it already contains lots of sensitive information since regular queries are also printed.

Normally I'd approach this by just creating a wrapper function to serve the additional logging needs during development, but due to the chaining API, this seems non-trivial. If you've got any ideas about making this easier (log all execute calls with parameters) while not changing current behaviour, I'm open to helping with that too.

[dhensby]

I think this is an acceptable solution for now - my longer term goal is to add a generic "reporter" to the library and not have debug be a production requirement (see #840) but I don't have the time for that at the moment, so it's not going to happen for a while