Improve "use:" property processing #83

docs/content/patterns-definition.rst

...s_test_theme/templates/patterns/modal/modal-template.twig

...atterns_test_theme/ui_patterns_test_theme.ui_patterns.yml

src/Element/Pattern.php

...lidation/Constraint/ValidPatternMachineNameConstraint.php

src/UiPatternBase.php

src/UiPatternInterface.php

src/UiPatternsManager.php

templates/patterns-use-wrapper.html.twig

tests/src/fixtures/validation.yml

ui_patterns.module

ui_patterns.services.yml