Write tour integration for Project Browser

Problem/Motivation

Write tour integration for Project Browser. It can help introduce people new to Drupal to the many new concepts.

Work on this feature should probably wait, until the UI has reached a stable state.

Proposed resolution

Create tour yml files for elements in /admin/modules/browse.

Technical pointers when creating tour tips

See: https://drupal.org/node/1921152#tour-tips-tech-note for tech notes on making tour tips.

Remaining tasks

• ✅ File an issue about this project
• ☐ Manual Testing
• ☐ Code Review
• ☐ Accessibility Review
• ☐ Automated tests needed/written?