CleanUp Cache namespace

- Introduce enum "Duration"
- Introduce enum "Type"
- Move "Cache\Cache" to "BaseCache"

src/Core/Lock/CacheLock.php

@@ -30,7 +30,7 @@ class CacheLock extends Lock
 	/**
 	 * (@inheritdoc)
 	 */
-	public function acquire($key, $timeout = 120, $ttl = Cache\Cache::FIVE_MINUTES)
+	public function acquire($key, $timeout = 120, $ttl = Cache\Duration::FIVE_MINUTES)
 	{
 		$got_lock = false;
 		$start    = time();

src/Core/Lock/DatabaseLock.php

@@ -2,7 +2,7 @@
 
 namespace Friendica\Core\Lock;
 
-use Friendica\Core\Cache\Cache;
+use Friendica\Core\Cache\Duration;
 use Friendica\Database\Database;
 use Friendica\Util\DateTimeFormat;
 
@@ -35,7 +35,7 @@ class DatabaseLock extends Lock
 	/**
 	 * (@inheritdoc)
 	 */
-	public function acquire($key, $timeout = 120, $ttl = Cache::FIVE_MINUTES)
+	public function acquire($key, $timeout = 120, $ttl = Duration::FIVE_MINUTES)
 	{
 		$got_lock = false;
 		$start    = time();

src/Core/Lock/ILock.php

@@ -30,7 +30,7 @@ interface ILock
 	 *
 	 * @return boolean Was the lock successful?
 	 */
-	public function acquire($key, $timeout = 120, $ttl = Cache\Cache::FIVE_MINUTES);
+	public function acquire($key, $timeout = 120, $ttl = Cache\Duration::FIVE_MINUTES);
 
 	/**
 	 * Releases a lock if it was set by us

src/Core/Lock/Lock.php

@@ -2,7 +2,7 @@
 
 namespace Friendica\Core\Lock;
 
-use Friendica\Core\Cache\Cache;
+use Friendica\Core\Cache\Type;
 
 /**
  * Class AbstractLock
@@ -13,7 +13,7 @@ use Friendica\Core\Cache\Cache;
  */
 abstract class Lock implements ILock
 {
-	const TYPE_DATABASE  = Cache::TYPE_DATABASE;
+	const TYPE_DATABASE  = Type::DATABASE;
 	const TYPE_SEMAPHORE = 'semaphore';
 
 	/**

src/Core/Lock/SemaphoreLock.php

@@ -36,7 +36,7 @@ class SemaphoreLock extends Lock
 	/**
 	 * (@inheritdoc)
 	 */
-	public function acquire($key, $timeout = 120, $ttl = Cache\Cache::FIVE_MINUTES)
+	public function acquire($key, $timeout = 120, $ttl = Cache\Duration::FIVE_MINUTES)
 	{
 		self::$semaphore[$key] = sem_get(self::semaphoreKey($key));
 		if (!empty(self::$semaphore[$key])) {