Added endpoints for Product Variant Patches

Now you are able to update more than one ProductVariants belonging to different or the same Products with several small Patches.

For example, send a single request with an array of Patches as follows.

{
  "type" : "product-variant-patch",
  "patches" : [ {
    "productVariant" : {
      "typeId" : "product-variant",
      "key" : "red-t-shirt"
    },
    "product" : {
      "key" : "t-shirt",
      "typeId" : "product"
    },
    "attributes" : {
      "new" : {
        "type" : "boolean",
        "value" : false
      },
    "old" : {
      "type" : "boolean",
      "value" : true
    },
    "weight" : "null"
    }
  }]
}

To update product variants in small patches, use the Importing Product Variant Patches endpoint. As all other import API features, this new Product Variant patch feature also has the below endpoints:

• Patch request creation endpoint with a POST method.
• Patch request status monitoring by ImportSink key or ImportOperation id.