Variou details:

- Put the MIT copyright at the end.
- Move the directory /other -> tools
- Various improvements.

src/ftxui/component/receiver_test.cpp

@@ -1,7 +1,3 @@
-// Copyright 2020 Arthur Sonzogni. All rights reserved.
-// Use of this source code is governed by the MIT license that can be found in
-// the LICENSE file.
-
 #include "ftxui/component/receiver.hpp"
 
 #include <thread>
@@ -76,3 +72,7 @@ TEST(Receiver, BasicWithThread) {
   t12.join();
   t23.join();
 }
+
+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.