Add the documentation for DynamicRowsDragAndDrop UI component

[serhiyzhovnir]

Purpose of this pull request

This pull request (PR) adds the documentation for the DynamicRowsDragAndDrop UI component.

Affected DevDocs pages

This is a new topic.

Links to Magento source code

• https://github.com/magento/magento2/blob/2.2/app/code/Magento/Ui/view/base/web/js/dynamic-rows/dnd.js
• https://github.com/magento/magento2/blob/2.3/app/code/Magento/Ui/view/base/web/js/dynamic-rows/dnd.js
• https://github.com/magento/magento2/blob/2.2/app/code/Magento/Ui/view/base/web/templates/dynamic-rows/cells/dnd.html
• https://github.com/magento/magento2/blob/2.3/app/code/Magento/Ui/view/base/web/templates/dynamic-rows/cells/dnd.html
• https://github.com/magento/magento2/blob/2.2/app/code/Magento/Ui/view/base/web/js/dynamic-rows/dynamic-rows.js#L127-L133
• https://github.com/magento/magento2/blob/2.3/app/code/Magento/Ui/view/base/web/js/dynamic-rows/dynamic-rows.js#L127-L133

whatsnew
Added a new topic for the DynamicRowsDragAndDrop component in the UI Components Guide.

[devops-devdocs]

An admin must run tests on this PR before it can be merged.

[rogyar]

A couple of examples of the usage:
https://github.com/magento/magento2/blob/7aa94564d85e408baea01abc5315a0441401c375/app/code/Magento/CatalogInventory/view/adminhtml/ui_component/product_form.xml#L229
https://github.com/magento/magento2/blob/7aa94564d85e408baea01abc5315a0441401c375/app/code/Magento/AsynchronousOperations/view/adminhtml/ui_component/failed_operation_listing.xml#L47

Unfortunately, there's no example of the extended config usage in the core at the moment

[dobooth]

running tests

[ghost]

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