Add usb permissions and device_filter.xml

Added necessary usb permissions to manifest.
Also added device filter. This filter helps immensely in getting
permissions from android on attaching any of the recognised
ftdi devices. Just attach the device, a popup is shown asking for
permissions to use the device. Press yes and you would go to
subsurface application already having the device permissions.
No need of android gui listing ftdi devices and selecting one.

Also, there is option to make subsurface default application
on attaching ftdi device. A plus point. :)

Signed-off-by: Venkatesh Shukla <venkatesh.shukla.eee11@iitbhu.ac.in>