CP-8784: Support different endian-ness in Io module
CP-8784: Add 64-bit read/write to Io module

Signed-off-by: Si Beaumont <simon.beaumont@citrix.com>
CP-8784: Support fd mappings in cancellable_subprocess

Signed-off-by: Si Beaumont <simon.beaumont@citrix.com>
CP-8784: Use new suspend-image format

Detect older formats and pipe through conversion tool. Newer formats have
a proper framing protocol.

Signed-off-by: Si Beaumont <simon.beaumont@citrix.com>
DEBUG: Log Domain.{suspend,resume} with different ident

Signed-off-by: Si Beaumont <simon.beaumont@citrix.com>