Drop support for php < 7.4

3.0.0

Make php7.4 the minimum requirement, update dependencies, add psalm

Allow hydration by lists

Extend README.md

(cherry picked from commit d4db20881ab9b2a6b79c1d1aa7c687bd80f3da93)
Signed-off-by: Alexander Wühr <wuehr@sc-networks.com>

v1.1.0

Add strictness about keys in hydration

v1.0.1

Remove unused and useless methods from hydrator

PHP 5.6 Compatibility Release

This release is for PHP 5.6 compatibility only

Initial Release

v1.0.0

Add some badges