Major refactor: split codebase into multiple files

Now for the fun part: will this compile?

Sources/YTStockVolumeHUD.xm

@@ -0,0 +1,21 @@
+#import "uYouPlus.h"
+
+%group YTStockVolumeHUD // https://github.com/lilacvibes/YTStockVolumeHUD
+%hook YTVolumeBarView
+- (void)volumeChanged:(id)arg1 {
+	%orig(nil);
+}
+%end
+
+%hook UIApplication 
+- (void)setSystemVolumeHUDEnabled:(BOOL)arg1 forAudioCategory:(id)arg2 {
+	%orig(true, arg2);
+}
+%end
+%end
+
+%ctor {
+    if (IS_ENABLED(@"stockVolumeHUD_enabled")) {
+        %init(YTStockVolumeHUD);
+    }
+}