Added derive for PID config fields.

This is so these config fields can be stored as JSON

src/core/logic/pid.rs

@@ -1,4 +1,7 @@
+use serde::{Deserialize, Serialize};
+
 ///The Config for the PID system used by the controller
+#[derive(Serialize, Deserialize, Debug, Default, Clone, Copy, PartialEq)]
 pub struct Config {
     ///The Proportional value for the controller
     pub kp: f32,