App support for server automation

[aquatiko]

Adding support in the app to handle server(laptop) automating the workflow.

The end goal should be an app which can communicate with server and start/stop it's activities in it's lifecycle and finally send the results i.e lag tests.

Tempory server script: Server scripts

Updated script(in golang): server.go

Current features

• Server can find a random avilable port for communication.
• Server can open app automatically on android while sending it's binded port information to app.
• Server can set-up a tunnel for android and laptop to communicate viz. reverse port forwarding using adb and the port info, which it sent
• App can send a signal to laptop when capture button is pressed to start simulating keystrokes on laptop end
• Server can receive that signal and start to simulate keystrokes

ToDo

• [x] Convert server scripts to golang and use tast.
• [x] Automate app activity till capture button press. (Currently user is required to select a fps and then press capture on the app)
• [x] Add singnal to (in app and server) stop recording when all inputs are simulated.
• [x] Send simulation info. to app.
• [x] Calculate results (lag tests).

[mwarton]

As discussed we will merge this pull request as the experimental code. REmaining comments will be addressed in subsequent pull requests.