Refactor config file content into a module

[#52884305]
Add project-open command & tests, and update the README

[#52884305]
[Delivers #52884305]

* project-open-52884305:
  Add project-open command & tests, and update the README
  Refactor config file content into a module
Bump version number
Merge release

* release-1.2.0:
  Bump version number