feat: initial support for segatools pkgs

rust/src/model/config.rs

@@ -1,9 +1,12 @@
 use std::path::PathBuf;
 use serde::{Deserialize, Serialize};
+use crate::pkg::PkgKey;
 
 #[derive(Deserialize, Serialize, Clone)]
 pub struct Segatools {
     pub target: PathBuf,
+    pub hook: Option<PkgKey>,
+    pub io: Option<PkgKey>,
     pub amfs: PathBuf,
     pub option: PathBuf,
     pub appdata: PathBuf,
@@ -15,6 +18,8 @@ impl Default for Segatools {
     fn default() -> Self {
         Segatools {
             target: PathBuf::default(),
+            hook: Some(PkgKey("segatools-mu3hook".to_owned())),
+            io: None,
             amfs: PathBuf::default(),
             option: PathBuf::default(),
             appdata: PathBuf::from("appdata"),