Use the log crate instead of "debug-print" feature

[tqwewe]

Currently SeaORM uses a feature flag called "debug-print" which simple executes a println with the query.

It might be nice to use the "log" / "env-logger" crates instead.

For example, replace

debug_print!("{}", stmt);

with

info!(target: "sea-orm-query", "{}", stmt);

The benefit of this is that apps using SeaORM can change logging through env vars rather than recompiling with a new feature flag.
For example:

$ RUST_LOG=sea-orm-query=info ./main

[tyt2y3]

Yes, I agree. It will be very helpful at deployment!