Dogen

CCT plugin rewrite

Fixed bug when specifying the target artifact filename together with `DOGEN_SOURCES_CACHE` env variable.

Small typo fix.

Changes

Small fix to ensure that if we rename the artifact - it'll be added in the new name to the container.

Changes
- Better Dockerfile - uses files from the repo directly
- Enabling dist-git plugin is now dony by using `--dist-git-enable` switch.
- Enhanced dist-git plugin by adding `--dist-git-assume-yes` switch which will make the use of dogen almost non-interactive - you still need to choose the branch you want to sync with, 68

Changes
- Fix a bug where enviroment variables were not preserved when running using Docker image