enabled to use CCT modules from cct dir next to the image descriptor
enabled to use CCT modules from cct dir next to the image descriptor

Dogen CCT plugin can now inject CCT modules from directory next to
image descriptor as follows:

if you have directory structure like:
```
image.yaml
cct/module1
cct/module2
```

Dogen CCT plugin will make module1 and modul2 available in target
directory for CCT to use them.

If cct/module1 is symbolink link its target directory gets copied (symlink
is followed).

jboss-container-images/concreate,goldmann/dogen,goldmann/dogen,jboss-dockerfiles/dogen,jboss-container-images/concreate,jboss-container-images/concreate,jboss-dockerfiles/dogen,goldmann/dogen,jboss-dockerfiles/dogen