Adds Official Cartridge files (v1.16.3)

Adds the entire project tree from openshift-origin-cartridge-nodejs
1.16.3 as the cartridge starting point
Clean, comment and format base files

Formatted original cartridge files and cleaned up uneeded files. The
cartridge still has original functionality.

  - Fixes env var double slashes
  - Annotates and formats control scripts
  - Formats and consolidate node_context into util script
  - Create manifest.yml (from rhel version) and add Source-Url for Github
    repository