Support "store" field type in grid

[BlackbitDevs]

Q	A
Bug fix?	yes
New feature?	no
BC breaks?	no
Deprecations?	no

If show a coreShopStore (store select) field in grid you'll get no data

This is because CoreShop\Bundle\StoreBundle\CoreExtension\Store class hasn't method getDataForGrid

This method with all dependent methods setOptions and getOptions was copied from https://github.com/pimcore/pimcore/blob/10.5/models/DataObject/ClassDefinition/Data/Select.php (because Coreshop does not extend Pimcore's Select field type)
Only return data was changed from return $data; to return $data?->getId(); because the getter returns a Store object via

CoreShop/src/CoreShop/Bundle/ResourceBundle/CoreExtension/Select.php

Line 186 in bb483e7

return $this->getRepository()->find($data);

The most important point why it did not work is that in
https://github.com/pimcore/pimcore/blob/a5b86f3f9a63ac76282acee00879fb52b416a4ce/bundles/AdminBundle/Resources/public/js/pimcore/object/tags/select.js#L99
field.layout.optionsProviderClass is checked. This refers to a public field optionsProviderClass in the Store PHP class which did not exist before (only the getOptionsProviderClass() existed) and caused a JS error because of accessing a non-existing object property.

With this PR it looks like this

[dpfaffenbauer]

@BlackbitDevs NICE :), can we rebase it to 3.0?

[BlackbitDevs]

Is now rebased to 3.0

[dpfaffenbauer]

@BlackbitDevs tests are failing

[dpfaffenbauer]

@BlackbitDevs thank you very much