acsccid: new package

acsccid: new package

[Thomas:
 - fix commit title
 - change libusb back to a mandatory dependency, since even though
   there is a --disable-libusb option, it has no effect, and the code
   fails to build due to missing libusb.h
 - add hash file, noticed by Arnout
 - remove host-perl dependency, noticed by Arnout
 - rewrap Config.in help text, noticed by Arnout.]

Signed-off-by: Juha Rantanen <juha@codercoded.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>