GitLab

* Creating ParMETIS wrapper script to run parmetis using one script from user perspective

* Addressed all the CI comments from PR https://github.com/dmlc/dgl/pull/4529

* Addressing CI comments.

* Isort, and black changes.

* Replaced python with python3

* Replaced single quote with double quotes per suggestion.

* Removed print statement

* Addressing CI Commets.

* Addressing CI review comments.

* Addressing CI comments as per chime discussion with Rui

* CI Comments, Black and isort changes

* Align with code refactoring, black, isort and code review comments.

* Addressing CI review comments, and fixing merge issues with the master branch

* Updated with proper unit test skip decorator