more unit tests working.

imgui drawing directly to background now

gemmautil/src/bin/ch8asm.rs

@@ -31,6 +31,7 @@ fn main() {
     }
 }
 
+#[cfg(test)]
 mod test {
     use pest::Parser;
     use crate::{Chip8AsmParser, Rule};

gemmautil/src/bin/ch8disasm.rs

@@ -79,14 +79,4 @@ fn main() {
             std::fs::write(target, decompiled_program).unwrap();
         }
     }
-}
-
-mod test {
-    #[test]
-    fn smoke() { assert!(true); }
-
-    #[test]
-    fn assemble_test_file() {
-
-    }
 }