Plan to check inheritance transitively

[fain182]

This is a big step forward for phparkitect, but it's a big project, so this is the issue to recap all the parts.

The main strategy will be to use the autoloaded classes and reflection instead of static analysis to check for parent classes, interfaces, etc.

• Deprecate the docker image, because it does not autoload the project Remove Docker support and simplify development setup #598
• Autoload path when using the phar becomes mandatory Require --autoload option when running phparkitect as PHAR #601
• Stop using vfsStream for tests, because it's does not work with autoload
• Use reflection in filevisitor to check for inheritance, interfaces or traits
• Rewrite isA rule using classDescription informations
• Check performance