PHP 8 support

[mhucik]

• added support for PHP 8
• update related packages
• kdyby/console and kdyby/strict-objects have no release for required updates yet, updates are on dev branch
• tested in production on PHP 7.4 and on PHP 8.0

BC:

• removed connection parameter from Kdyby\Doctrine\Console\DbalDelegateCommand. Parameter already defined in \Doctrine\DBAL\Tools\Console\Command\ReservedWordsCommand, but not redefined in deprecated \Doctrine\DBAL\Tools\Console\Command\ImportCommand

Fix:

• removed em parameter from abstract Kdyby\Doctrine\Console\OrmDelegateCommand. Parameter already defined in all inherited commands
• \ReflectionClass class used instead of Nette\Reflection\ClassType
• \ReflectionProperty class used instead of \Nette\Reflection\Property

[alena424]

can it be merged?

[mhucik]

can it be merged?

@alena424

• first of all this PR and this branch has to be merged and released
• then I can update this PR and set dependencies to specific release, so they won't be required from branch
• then this PR can be merged and released

---

If you need it for your project and you dont want to wait until it will be merged, you can try following steps:

1. add my forked repository as composer repository source

"repositories": [
    {
      "type": "vcs",
      "url": "https://github.com/mhucik/doctrine"
    }
  ]

2. Then you should be able to require it in your project composer require kdyby/doctrine:dev-php8-support