Re-export debug macros from the debug module

This makes it easy to import just the macros without having to use the
oldschool `#[macro_use] extern crate ...;` syntax.

plugins/loudness_war_winner/src/filter.rs

@@ -14,6 +14,7 @@
 // You should have received a copy of the GNU General Public License
 // along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
+use nih_plug::debug::*;
 use std::f32::consts;
 use std::ops::{Add, Mul, Sub};
 

plugins/loudness_war_winner/src/lib.rs

@@ -14,9 +14,6 @@
 // You should have received a copy of the GNU General Public License
 // along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
-#[macro_use]
-extern crate nih_plug;
-
 use nih_plug::prelude::*;
 use std::sync::Arc;