use tcell via porting over code from awesome-gocui

vendor/github.com/gdamore/tcell/v2/tscreen_stub.go

@@ -0,0 +1,36 @@
+// +build nacl plan9
+
+// Copyright 2015 The TCell Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use file except in compliance with the License.
+// You may obtain a copy of the license at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package tcell
+
+// This stub file is for systems that have no termios.
+
+type termiosPrivate struct{}
+
+func (t *tScreen) termioInit() error {
+	return ErrNoScreen
+}
+
+func (t *tScreen) termioFini() {
+}
+
+func (t *tScreen) getWinSize() (int, int, error) {
+	return 0, 0, ErrNoScreen
+}
+
+func (t *tScreen) Beep() error {
+	return ErrNoScreen
+}