Move AbstractControl one level up

- Relates #813

spring-shell-core/src/main/java/org/springframework/shell/component/view/control/AbstractControl.java

@@ -13,14 +13,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.springframework.shell.component.view.control.cell;
+package org.springframework.shell.component.view.control;
 
 import java.util.Optional;
 
 import org.jline.utils.AttributedStyle;
 
 import org.springframework.lang.Nullable;
-import org.springframework.shell.component.view.control.Control;
 import org.springframework.shell.component.view.geom.Rectangle;
 import org.springframework.shell.style.ThemeResolver;
 import org.springframework.shell.style.ThemeResolver.ResolvedValues;

spring-shell-core/src/main/java/org/springframework/shell/component/view/control/AbstractView.java

@@ -27,7 +27,6 @@ import reactor.core.Disposables;
 
 import org.springframework.lang.Nullable;
 import org.springframework.messaging.Message;
-import org.springframework.shell.component.view.control.cell.AbstractControl;
 import org.springframework.shell.component.view.event.EventLoop;
 import org.springframework.shell.component.view.event.KeyBindingConsumer;
 import org.springframework.shell.component.view.event.KeyBindingConsumerArgs;

spring-shell-core/src/main/java/org/springframework/shell/component/view/control/cell/AbstractCell.java

@@ -15,6 +15,7 @@
  */
 package org.springframework.shell.component.view.control.cell;
 
+import org.springframework.shell.component.view.control.AbstractControl;
 import org.springframework.shell.component.view.control.Cell;
 
 public abstract class AbstractCell<T> extends AbstractControl implements Cell<T> {