Search API: Add information about projects when searching in wiki_blobs, blobs, commits scopes
When searching using Search API with Elasticsearch enabled it is possible to search blob, wiki_blobs and commits within group/GitLab instance. Entities blobs / commits are returned - but they don't contain information about projects. It is ok when searching within a project but a bit useless when searching within group/globally.
We should add information about project - we should add it generally even when searched within a project to have it unified - therefore creating the issue in the CE.
/cc @victorwu @smcgivern