(feat) Add the Stock Rule menu entry on the stock item page, the stock rule listing and add CRUD

[PatrickWaweru]

(feat) Add the Stock Rule menu entry on the stock item page, the stock rule listing and add CRUD

Requirements

• [ X] This PR has a title that briefly describes the work done including a conventional commit type prefix and a Jira ticket number if applicable. See existing PR titles for inspiration.

For changes to apps

• [X ] My work conforms to the OpenMRS 3.0 Styleguide and design documentation.

If applicable

• [ X] My work includes tests or is validated by existing tests.

Summary

(feat) Add the Stock Rule menu entry on the stock item page, the stock rule listing and add CRUD

Screenshots