add config (WIP)

src/main.rs

@@ -1,10 +1,11 @@
 use anyhow::{Context, Result};
 
-use pacdef::{args, Group, Pacdef};
+use pacdef::{args, Config, Group, Pacdef};
 
 fn main() -> Result<()> {
     let args = args::get();
-    let groups = Group::load_from_dir()?;
-    let pacdef = Pacdef::new(args, groups);
+    let config = Config::load().context("loading config file")?;
+    let groups = Group::load(&config).context("loading groups")?;
+    let pacdef = Pacdef::new(args, config, groups);
     pacdef.run_action_from_arg().context("running action")
 }