Improve object caching

[johanjanssens]

Improve the object caching to easily offer support for different caching backend. Consider implementing a proxy pattern and generic interface to easily integrate with other caching libraries through adapters:

Resources:

• https://symfony.com/doc/current/components/cache.html
• https://www.scrapbook.cash/
• http://www.php-cache.com/en/latest/
• https://github.com/nette/caching
• https://www.stashphp.com/

Related:

• https://chartio.com/resources/tutorials/how-to-get-all-keys-in-redis/
• https://github.com/predis/predis
• https://www.upstash.com/