First version of XFV

A script and C backend to extract firmware images.

Christoph Pfisterer <cp@chrisp.de> has agreed by mail to publish his
part of this code as public domain. Decompress.c is (c) Intel under
BSD 2-clause. The small bits in this commit by Stefan Tauner are
also public domain.

The code has been reformated by autopep8.

Change-Id: Ic3a03bd289999d0086219441eddfc1ae72d06f8c
Signed-off-by: Stefan Tauner <stefan.tauner@gmx.at>
Reviewed-on: http://review.coreboot.org/1513
Tested-by: build bot (Jenkins)
Reviewed-by: Anton Kochkov <anton.kochkov@gmail.com>
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
8 files changed