BUGFIX: Fix package:create and derive commands when private packagist is used
BUGFIX: Fix package:create and derive commands when private packagist is used

When private packagist is used the following setting isn added to the repositories section of the composer.json

```
repositories: [
	{
            "packagist.org": false
        }
]
```

This caused an error because the package:create command tried to access the undefined `type` property of each defined
repository.

This change checks for the existence of the type key before acessing it.

robertlemke/flow-development-collection,bwaidelich/flow-development-collection,daniellienert/flow-development-collection,daniellienert/flow-development-collection,fcool/flow-development-collection,albe/flow-development-collection,neos/flow-development-collection,bwaidelich/flow-development-collection,neos/flow-development-collection,robertlemke/flow-development-collection,neos/flow-development-collection,albe/flow-development-collection,fcool/flow-development-collection,robertlemke/flow-development-collection,robertlemke/flow-development-collection,fcool/flow-development-collection,albe/flow-development-collection,kdambekalns/flow-development-collection,kdambekalns/flow-development-collection,neos/flow-development-collection,dlubitz/flow-development-collection,kdambekalns/flow-development-collection,dlubitz/flow-development-collection,fcool/flow-development-collection,bwaidelich/flow-development-collection,kdambekalns/flow-development-collection,dlubitz/flow-development-collection,daniellienert/flow-development-collection