[TASK] Simplify sprite manager

- Default sprite handler is registered in DefaultConfiguration.php
- Manager class is made static, $GLOBALS['spriteManager'] is gone
- The compliled global sprite array is stuffed to the php_code cache
  instead of an own .inc file in typo3temp/sprite
- $allowRegeneration parameter is dropped and not needed anymore: The
  cache entries are tagged and will be dropped by the extension manager
  upon loading, unloading and upgrading an extension

Change-Id: Ibb15b488dccd170a75819ad5ac44f01058510b69
Resolves: #39458
Releases: 6.0
Reviewed-on: http://review.typo3.org/13420
Reviewed-by: Steffen Ritter
Reviewed-by: Helmut Hummel
Tested-by: Helmut Hummel