* Remove `es-test-dir` book-scoped variable
* Remove `plugins-examples-dir` book-scoped variable
* Remove `:dependencies-dir:` and `:xes-repo-dir:` book-scoped variables
- In `index.asciidoc`, two variables (`:dependencies-dir:` and `:xes-repo-dir:`) were removed.
- In `sql/index.asciidoc`, the `:sql-tests:` path was updated to fuller path
- In `esql/index.asciidoc`, the `:esql-tests:` path was updated idem
* Replace `es-repo-dir` with `es-ref-dir`
* Move `:include-xpack: true` to few files that use it, remove from index.asciidoc
With https://github.com/elastic/elasticsearch/pull/81870, the Azure, GCS, and S3 repository types have separate, dedicated pages in the Elasticsearch guide. For consistency, this PR creates separate pages for the shared file system, read-only URL, and source-only repository types.
Related changes:
- Adds redirects to the plugins docs
- Fixes a few breaking changes that refer to the Azure, GCS, and S3 repositories as plugins.
Co-authored-by: Adam Locke <adam.locke@elastic.co>
