VCST-1630: add change cart items quantity command

[ksavosteev]

Description

mutation changeCartItemsQuantity($command: InputChangeCartItemsQuantityType!) {
  changeCartItemsQuantity(command: $command)
  {
        id
        name
        items {
          id
          name
          quantity
      }
  }
}

---

{
    "command": {
        "storeId": "B2B-store",
        "cartId": "123",
        "userId": "456",
        "cartItems": [
            {
                "lineItemId": "78f1b42f-2377-4612-9bb7-84ea3f058cb6",
                "quantity": 5
            },
            {
                "lineItemId": "93eb8c29-0344-40a1-b0f1-8b9e4c4b38c6",
                "quantity": 0
            },
            {
                "lineItemId": "b64f9f1c-2bef-486f-a509-4efe1d9b140c",
                "quantity": 3
            }
        ]
    }
}

References

QA-test:

Jira-link:

https://virtocommerce.atlassian.net/browse/VCST-1630

Artifact URL:

https://vc3prerelease.blob.core.windows.net/packages/VirtoCommerce.XCart_3.804.0-pr-6-ec0a.zip

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud