libcrossguid: bump to version 0.2.2

- Add hash for license file

- guid.cpp and guid.h have been renamed Guid.cpp and Guid.hpp (they
  will be renamed back to guid.cpp and guid.hpp in next release)

- Continue to use package-generic infrastructure as cmake doesn't work
  properly with this version. Commit such as
  https://github.com/graeme-hill/crossguid/commit/974def4e0ad62b8fea17d6dee7c4f9b0d65eaa2c


  is needed. Migration on cmake should be done in next package
  release.

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>