AbstractCacheDriver now working for each CacheDriver

src/Core/Cache/AbstractCacheDriver.php

@@ -11,7 +11,7 @@ use Friendica\BaseObject;
  *
  * @package Friendica\Core\Cache
  */
-abstract class AbstractCacheDriver extends BaseObject implements IMemoryCacheDriver
+abstract class AbstractCacheDriver extends BaseObject
 {
 	/**
 	 * @param string $key	The original key

src/Core/Cache/ArrayCache.php

@@ -12,7 +12,7 @@ use Friendica\Core\Cache;
  *
  * @package Friendica\Core\Cache
  */
-class ArrayCache extends AbstractCacheDriver
+class ArrayCache extends AbstractCacheDriver implements IMemoryCacheDriver
 {
 	use TraitCompareDelete;
 

src/Core/Cache/DatabaseCacheDriver.php

@@ -12,7 +12,7 @@ use Friendica\Util\DateTimeFormat;
  *
  * @author Hypolite Petovan <mrpetovan@gmail.com>
  */
-class DatabaseCacheDriver implements ICacheDriver
+class DatabaseCacheDriver extends AbstractCacheDriver implements ICacheDriver
 {
 	public function get($key)
 	{

src/Core/Cache/MemcacheCacheDriver.php

@@ -9,7 +9,7 @@ use Friendica\Core\Cache;
  *
  * @author Hypolite Petovan <mrpetovan@gmail.com>
  */
-class MemcacheCacheDriver extends AbstractCacheDriver
+class MemcacheCacheDriver extends AbstractCacheDriver implements IMemoryCacheDriver
 {
 	use TraitCompareSet;
 	use TraitCompareDelete;

src/Core/Cache/MemcachedCacheDriver.php

@@ -9,7 +9,7 @@ use Friendica\Core\Cache;
  *
  * @author Hypolite Petovan <mrpetovan@gmail.com>
  */
-class MemcachedCacheDriver extends AbstractCacheDriver
+class MemcachedCacheDriver extends AbstractCacheDriver implements IMemoryCacheDriver
 {
 	use TraitCompareSet;
 	use TraitCompareDelete;

src/Core/Cache/RedisCacheDriver.php

@@ -10,7 +10,7 @@ use Friendica\Core\Cache;
  * @author Hypolite Petovan <mrpetovan@gmail.com>
  * @author Roland Haeder <roland@mxchange.org>
  */
-class RedisCacheDriver extends AbstractCacheDriver
+class RedisCacheDriver extends AbstractCacheDriver implements IMemoryCacheDriver
 {
 	/**
 	 * @var \Redis