It was noticed that Jenkins was silent on some patches when submitted related to extensions as per T175794. To keep things clean and make Jenkins to track all these extensions, run builds and tests for them, it would be good to include all the missing extensions to `zuul/layout.yaml`.
https://gerrit.wikimedia.org/r/#/c/373408/ is an example change on [[https://www.mediawiki.org/wiki/Extension:SendGrid|SendGrid extension]] on a similar thing that needs to be done.
TODO:
* extensions/BlueSpiceAbout - not in zuul
* extensions/BlueSpiceArticleInfo - not in zuul
* extensions/BlueSpiceAuthors - not in zuul
* extensions/BlueSpiceAvatars - not in zuul
* extensions/BlueSpiceBlog - not in zuul
* extensions/BlueSpiceChecklist - not in zuul
* extensions/BlueSpiceConfigManager - not in zuul
* extensions/BlueSpiceContextMenu - not in zuul
* extensions/BlueSpiceCountThings - not in zuul
* extensions/BlueSpiceDashboards - not in zuul
* extensions/BlueSpiceEmoticons - not in zuul
* extensions/BlueSpiceExtendedStatistics - not in zuul
* extensions/BlueSpiceGroupManager - not in zuul
* extensions/BlueSpiceHideTitle - not in zuul
* extensions/BlueSpiceInsertCategory - not in zuul
* extensions/BlueSpiceInsertFile - not in zuul
* extensions/BlueSpiceInsertLink - not in zuul
* extensions/BlueSpiceInsertMagic - not in zuul
* extensions/BlueSpiceInterWikiLinks - not in zuul
* extensions/BlueSpiceMenues - not in zuul
* extensions/BlueSpiceNamespaceCSS - not in zuul
* extensions/BlueSpiceNamespaceManager - not in zuul
* extensions/BlueSpicePageAccess - not in zuul
* extensions/BlueSpicePagesVisited - not in zuul
* extensions/BlueSpicePageTemplates - not in zuul
* extensions/BlueSpicePermissionManager - not in zuul
* extensions/BlueSpiceRSSFeeder - not in zuul
* extensions/BlueSpiceReaders - not in zuul
* extensions/BlueSpiceSaferEdit - not in zuul
* extensions/BlueSpiceSmartlist - not in zuul
* extensions/BlueSpiceTagCloud - not in zuul
* extensions/BlueSpiceUEModulePDF - not in zuul
* extensions/BlueSpiceUniversalExport - not in zuul
* extensions/BlueSpiceUsageTracker - not in zuul
* extensions/BlueSpiceUserManager - not in zuul
* extensions/BlueSpiceUserPreferences - not in zuul
* extensions/BlueSpiceWatchList - not in zuul
* extensions/BlueSpiceWhoIsOnline - not in zuul
* extensions/Collection/OfflineContentGenerator/epub_renderer
* extensions/Collection/OfflineContentGenerator/node_modules
* extensions/Wigo3 - not in zuul