Migrate UI test suite to JUnit 5 and add dependencies for JUnit 5 and#2993

vogella wants to merge 2 commits intoeclipse-platform:mastereclipse-platform/eclipse.platform.ui:masterfrom

vogella:migrate-ui-test-suite-to-junit5vogella/eclipse.platform.ui:migrate-ui-test-suite-to-junit5Copy head branch name to clipboard