3.0.0

Merged

• Refactoring - Preparation of release 3.0 #34

Commits

• Breaking change: refactor: Update constructors. a080fae
• Breaking change: refactor: Remove Collection::with constructor. 90c732c
• tests: Update tests. 7d81431
• refactor: Update composer.json. 504567a
• ci: Test on PHP 7.4 only. eed419c
• ci: Drop support of PHP 7.1. 1aae097
• refactor: Add forgotten typed argument. 9fd2f9d
• test: Update tests. 693e7a6
• refactor: PHP 7.4 upgrade. ef8e8da
• docs: Update documentation. f84063d
• refactor: Update CacheIterator 02dc0a4
• docs: Update annotations. 7386746
• refactor: Update Iterator annotations. dc9a311