added mexico sample files

Signed-off-by: Peter Menke <pmenke@googlemail.com>
moved resources to appropriate folder, added Corpus.xml manifest

Signed-off-by: Peter Menke <pmenke@googlemail.com>
Merge branch 'master' of https://github.com/sfb673/mexico-testcorpus
Updated README file

Signed-off-by: Peter Menke <pmenke@googlemail.com>