FEATURE: Redis cache backend optimisations
FEATURE: Redis cache backend optimisations

WIth this change optimisations from the
community package sandstorm/optimized-redis-backend
are introduced into the core Redis backend.

fcool/flow-development-collection,neos/flow-development-collection,neos/flow-development-collection,neos/flow-development-collection,neos/flow-development-collection,fcool/flow-development-collection,robertlemke/flow-development-collection,kdambekalns/flow-development-collection,robertlemke/flow-development-collection,kdambekalns/flow-development-collection,fcool/flow-development-collection,fcool/flow-development-collection,kdambekalns/flow-development-collection,kdambekalns/flow-development-collection,robertlemke/flow-development-collection,robertlemke/flow-development-collection