support different adb servers

[alonstern]

add the ability to pass the adb server ip and port so this will also work with adb servers not only on localhost and 5037
Thanks :)

[rom1v]

I tag it as a feature request.

Meanwhile, as a workaround, you can set the ADB env variable to a custom script:

Here is /usr/local/bin/myadb:

#!/bin/sh
adb -P5038 "$@"

(make it executable)

ADB=/usr/local/bin/myadb scrcpy

(but not very convenient)

[rom1v]

Also see #144.

(use ADB_SERVER_SOCKET)