Implement uninstall hook

Problem/Motivation

The module currently doesn't implement an uninstall hook. Uninstalling and then installing the module again will produce errors.

In PreExistingConfigException.php line 65:                                                                                          
  Configuration objects (views.view.content_recycle_bin) provided by entity_recycle already exist in active configuration  

In EntityStorageBase.php line 485:
                                                                         
  'field_config' entity with ID 'node.page.recycle_bin' already exists. 

Warning: array_keys() expects parameter 1 to be array, null given in Drupal\entity_recycle\EntityRecycleViewManager->entityAccess() (line 70 of modules/contrib/entity_recycle/src/EntityRecycleViewManager.php).

Drupal\entity_recycle\EntityRecycleViewManager->entityAccess(Object, Object) (Line: 68)
entity_recycle_entity_access(Object, 'view', Object)
call_user_func_array('entity_recycle_entity_access', Array) (Line: 403)
Drupal\Core\Extension\ModuleHandler->invokeAll('entity_access', Array) (Line: 96)
Drupal\Core\Entity\EntityAccessControlHandler->access(Object, 'view', Object, 1) (Line: 314)
Drupal\Core\Entity\EntityBase->access('view', NULL, 1) (Line: 56)
Drupal\block\BlockRepository->getVisibleBlocksPerRegion(Array) (Line: 137)
Drupal\block\Plugin\DisplayVariant\BlockPageVariant->build() (Line: 274)
Drupal\Core\Render\MainContent\HtmlRenderer->prepare(Array, Object, Object) (Line: 132)
Drupal\Core\Render\MainContent\HtmlRenderer->renderResponse(Array, Object, Object) (Line: 90)
Drupal\Core\EventSubscriber\MainContentViewSubscriber->onViewRenderArray(Object, 'kernel.view', Object)
call_user_func(Array, Object, 'kernel.view', Object) (Line: 142)
Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch(Object, 'kernel.view') (Line: 163)
Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object, 1) (Line: 80)
Symfony\Component\HttpKernel\HttpKernel->handle(Object, 1, 1) (Line: 57)
Drupal\Core\StackMiddleware\Session->handle(Object, 1, 1) (Line: 47)
Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object, 1, 1) (Line: 106)
Drupal\page_cache\StackMiddleware\PageCache->pass(Object, 1, 1) (Line: 85)
Drupal\page_cache\StackMiddleware\PageCache->handle(Object, 1, 1) (Line: 47)
Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object, 1, 1) (Line: 52)
Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object, 1, 1) (Line: 23)
Stack\StackedHttpKernel->handle(Object, 1, 1) (Line: 717)
Drupal\Core\DrupalKernel->handle(Object) (Line: 19)

The recycle_bin field also doesn't get removed upon uninstalling the module.

Steps to reproduce

1. Enable Entity Recycle
2. Disable Entity Recycle
3. Enable Entity Recycle

Proposed resolution

Implement uninstall hook to clear the configuration set during install.