better method name

i guess "from" implies it is converting one thing to another, but that
is not what this method was doing really.

libretrogd/src/audio/queue.rs

@@ -41,7 +41,7 @@ pub struct AudioQueue {
 }
 
 impl AudioQueue {
-    pub fn from(audio: &Audio) -> Self {
+    pub fn new(audio: &Audio) -> Self {
         AudioQueue {
             spec: audio.spec,
             commands: VecDeque::new(),

libretrogd/src/system/mod.rs

@@ -252,7 +252,7 @@ impl SystemBuilder {
         };
         let mut audio = Audio::new(audio_spec, &sdl_audio_subsystem)?;
         audio.resume();
-        let audio_queue = AudioQueue::from(&audio);
+        let audio_queue = AudioQueue::new(&audio);
 
         // create input device objects, exposed to the application