Update hook project wiki event wqattribute to wiki_page_events

In GitLab 11.11, the Project Hook Key for wiki events was wiki_events.
We don't support GitLab 11.X. We only support GitLab 12.9.2+.
In new version of GitLab the correct key is wiki_page_events.

Remove unnecessary Memberships class from the project

Merge pull request #710 from hu-tmx/add-project-merge_method-suggestion_commit_message-remove_source_branch_after_merge

Add some missing properties to ProjectApi.updateProject and createProject

Add UserApi.getMemberships() to list projects and groups a user is member of

Many IDEs (such as IntelliJ IDEA) and editors already use the .editorconfig file if available.
For most popular editors there’s a plugin that adds EditorConfig support.

See https://editorconfig.org/ for more details.

Fix #658 : Pager not working properly

Since the removal of "X-Total-Pages" and "X-Total" headers, all paginations use the kaminari counter.
In this mode, kaminari counter is reset to -1 during the call of the last page. This part is correct.
Then when we call the `current()` method of the pager to get the current page. This method call the same `page` method than the `next` method. In this method the pager check if there is element before checking if we call for the current page. It throws NoSuchElementException erroneously.

To fix, I change the check sequence. First I check ifthe user call the current page. If so, we return the corresponding items. If not we check if there is such elements and call the API.

Fix a typo in the readme

fix: #657 Remove duplicate set of namespace_id

Prevent NoSuchElementException from PagerSpliterator class

feat: add generate changelog api support

Add more field to NoteEvent.ObjectAttributes

build: temporary skip tests on github action

fix: #676 Added missing values in PipelineStatus enum

Pass "masked" parameter to create/updateVariable

feat: Add various fields to project model

- readme_url
- can_create_merge_request_in
- import_status
- ci_default_git_depth
- remove_source_branch_after_merge
- auto_devops_enabled
- auto_devops_deploy_strategy
- auto_devops_enabled
- statistics.packages_size
- shared_with_groups.group_full_path

fix #613 #632 #667

test: Add tests for EmailOnPushService

Add support for email on push integration.

fix: #612 Update path for delete commit discussion note