Merge branch '8.x-1.x' into 91-decentralisation

CHANGELOG.md

README.md

docs/content/layout-plugin.rst

docs/content/patterns-definition.rst

docs/images/patterns-overview.png

docs/index.rst

modules/ui_patterns_layouts/README.md

...s/ui_patterns_layouts/src/Plugin/Layout/PatternLayout.php

modules/ui_patterns_layouts/ui_patterns_layouts.info.yml

modules/ui_patterns_layouts/ui_patterns_layouts.install

modules/ui_patterns_layouts/ui_patterns_layouts.module

...ui_patterns_library/src/Plugin/Deriver/LibraryDeriver.php

...install/core.entity_form_display.node.article.default.yml

.../core.entity_form_display.paragraph.jumbotron.default.yml

...install/core.entity_view_display.node.article.default.yml

...ig/install/core.entity_view_display.node.article.full.yml

.../core.entity_view_display.paragraph.jumbotron.default.yml

modules/ui_patterns_test/ui_patterns_test.features.yml

modules/ui_patterns_test/ui_patterns_test.info.yml

src/Plugin/Deriver/AbstractDeriver.php