refactor engine and layout into input and output

src/groovebox/groovebox_tui.rs

@@ -1,7 +1,6 @@
 use crate::*;
 use super::*;
 use std::marker::ConstParamTy;
-use tek_engine::Render;
 use EdnItem::*;
 
 const EDN: &'static str = include_str!("groovebox.edn");

src/lib.rs

@@ -5,12 +5,12 @@
 #![feature(impl_trait_in_assoc_type)]
 #![feature(associated_type_defaults)]
 
-pub use ::tek_tui::{self, tek_engine, tek_layout};
+pub use ::tek_tui::{self, tek_edn, tek_input, tek_output};
 pub(crate) use ::tek_tui::{
     *,
     tek_edn::*,
-    tek_layout::*,
-    tek_engine::*,
+    tek_input::*,
+    tek_output::*,
     crossterm::{
         self,
         event::{