Test Bandwidth

This is a very simple and very rough from various sources bandwidth test for ADB reverse connection Primarily made for checking maximum possible bandwidth for reverse tcp connection through USB cable

To test:

1. Prepare and run server - g++ server/server.cpp, ./a.out
2. Connect target device, make sure it's visible in adb devices
3. Run adb reverse tcp:9757 tcp:9757 - it should display 9757 in return
4. Run app on headset - easiest way to do it is via Android Studio
5. Server should say that client is connected, wait from 5 to X (any) number of seconds.
6. Stop server with Ctrl + C (in terminal), it should display final bandwidth calculated.