move idris version to orig and newt version to src.

Development is being done on the newt version now.

orig/Lib/Util.idr

@@ -0,0 +1,28 @@
+module Lib.Util
+
+import Lib.Types
+
+export
+funArgs : Tm -> (Tm, List Tm)
+funArgs tm = go tm []
+  where
+    go : Tm -> List Tm -> (Tm, List Tm)
+    go (App _ t u) args = go t (u :: args)
+    go t args = (t, args)
+
+public export
+data Binder : Type where
+  MkBinder : FC -> String -> Icit -> Quant -> Tm -> Binder
+
+-- I don't have a show for terms without a name list
+export
+Show Binder where
+  show (MkBinder _ nm icit quant t) = "[\{show quant}\{nm} \{show icit} : ...]"
+
+export
+splitTele : Tm -> (Tm, List Binder)
+splitTele = go []
+  where
+    go : List Binder -> Tm -> (Tm, List Binder)
+    go ts (Pi fc nm icit quant t u) = go (MkBinder fc nm icit quant t :: ts) u
+    go ts tm = (tm, reverse ts)