flatten modules somewhat

crates/tek/src/arranger/arranger_v/v_io.rs

@@ -0,0 +1,26 @@
+use crate::*;
+use super::*;
+
+pub struct ArrangerVIns<'a> {
+    size:   &'a Measure<Tui>,
+    tracks: &'a Vec<ArrangerTrack>,
+}
+
+from!(<'a>|args: &'a ArrangerTui|ArrangerVIns<'a> = Self {
+    size:   &args.size,
+    tracks: &args.tracks,
+});
+
+render!(<Tui>|self: ArrangerVIns<'a>|());
+
+pub struct ArrangerVOuts<'a> {
+    size:   &'a Measure<Tui>,
+    tracks: &'a Vec<ArrangerTrack>,
+}
+
+from!(<'a>|args: &'a ArrangerTui|ArrangerVOuts<'a> = Self {
+    size:   &args.size,
+    tracks: &args.tracks,
+});
+
+render!(<Tui>|self: ArrangerVOuts<'a>|());