Add getter functions for SqliteConnectOptions

[bengineer42]

I have found these related issues/pull requests

N/A

Description

SqliteConnectOptions has many pub(crate) fields with no corresponding public getter methods. Currently only get_filename() and get_vfs() exist, making it impossible for downstream consumers to inspect connection options after construction (e.g. when parsing from a URL string).

This is particularly problematic for in_memory — there's no way to determine if a SqliteConnectOptions represents an in-memory database without resorting to fragile filename heuristics.

Prefered solution

Make getter functions for each relevant field

Is this a breaking change? Why or why not?

No just add read only functions