Translate serial port settings of Terminal example

Change-Id: Ica127147999eaecc3d03189cfa9cd893115b846c
Reviewed-by: Sergey Belyashov <Sergey.Belyashov@gmail.com>
Add scroll area to Enumerator example

When a system has many serial ports, the last of them are
not visible on the screen, because a widget has a big height.
So, it is reasonable to add scrolling of all serial ports info.

Change-Id: Ic13b58fba38a17d6f5142476bca501a0d26ec76d
Reviewed-by: Sergey Belyashov <Sergey.Belyashov@gmail.com>