Merge branch 'hotfix/#6643-is-null-removal'

Close #6643
Fixes cs : space after if and elseif in deep conditional
iirc, I already sent a request to php-cs-fixer repository for its feature but it won't be implemented because it require to much logic
space after close parenthesis
remove double suggest block at Zend\Version\composer.json
Merge branch 'hotfix/#6580-remove-duplicate-suggest-block-in-zend-version' into develop

Close #6580
Merge branch 'hotfix/#6743-if-spacing-psr2-compliance' into develop

Forward port #6743
Add PasswordAwareInterface and PasswordAwareTrait