Add y1 DMC code.

.gitignore

Dockerfile

README.md

dev-requirements.txt

docs/Makefile

docs/conf.py

docs/index.rst

docs/installation.rst

docs/make.bat

docs/requirements.rst

docs/restapis.rst

docs/usage.rst

mc_openapi/__init__.py

mc_openapi/__main__.py

mc_openapi/app_config.py

mc_openapi/assets/__init__.py

mc_openapi/assets/doml.ecore

mc_openapi/assets/doml_meta.yaml

mc_openapi/bytes_uri.py

mc_openapi/doml/doml.ecore