Nested groups improvements pt 2

What does this MR do?

1. Expose full_name and full_path attributes of the Group to API
2. Use full_name and full_path for different dropdown/search autocomplete
3. When search inside group - look for results in nested groups too
4. Update group api doc with some attributes that are already exists but not mention in docs

Are there points in the code the reviewer needs to double check?

no

Why was this MR needed?

Make nested groups more integrated into GitLab

Screenshots (if relevant)

Does this MR meet the acceptance criteria?

• Changelog entry added
• Documentation created/updated
• API support added
• Tests
  • Added for this feature/bug
  • All builds are passing
• Conform by the merge request performance guides
• Conform by the style guides
• Branch has no merge conflicts with master (if it does - rebase it please)
• Squashed related commits together

What are the relevant issue numbers?

https://gitlab.com/gitlab-org/gitlab-ce/issues/2772

added 2 commits

• 3a80c634 - Add tests for nested groups in search service and search helper
• 856a0245 - Update group api doc with full_name and full_path attributes

Compare with previous version

added 1 commit

• a6aaa0b4 - Add changelog item about new attributes in group api

Compare with previous version

unmarked as a Work In Progress

changed title from WIP nested groups improvements 2 to Nested groups improvements pt 2

marked the task Changelog entry added as completed

marked the task Documentation created/updated as completed

marked the task API support added as completed

marked the task Added for this feature/bug as completed

marked the task All builds are passing as completed

marked the task Conform by the merge request performance guides as completed

marked the task Conform by the style guides as completed

marked the task Branch has no merge conflicts with master (if it does - rebase it please) as completed

marked the task Squashed related commits together as completed

@DouweM please review

assigned to @DouweM

assigned to @dzaporozhets

added 1 commit

• 19700d92 - Improve search within group logic

Compare with previous version

resolved all discussions

@DouweM done, should be better now

removed assignee

assigned to @DouweM

@dzaporozhets Looks good. Please fix the conflicts, and merge yourself.

assigned to @dzaporozhets

added 265 commits

• 19700d92...4468104f - 259 commits from branch master
• 15ad1d88 - Use full group name/path in UI dropdowns
• d6febcaf - Include nested groups items into search results
• b4bf3cd6 - Add tests for nested groups in search service and search helper
• bbd8d0d1 - Update group api doc with full_name and full_path attributes
• fae9814e - Add changelog item about new attributes in group api
• ba2d7eda - Improve search within group logic

Compare with previous version

enabled an automatic merge when the pipeline for ba2d7eda succeeds

merged

mentioned in commit d6450bb2

mentioned in issue #2772 (closed)

added subgroups label