[FEATURE] Please update Product Type XSD files

[littleylv]

Describe the improvement
Please update Product Type XSD files. Some attributes are not defined in xsd file but required by sp-api. For example: IncludedComponents

URL of the content on GitHub
For example: https://images-na.ssl-images-amazon.com/images/G/01/rainier/help/xsd/release_4_1/Industrial.xsd

Description of what the documentation currently says
There is no IncludedComponents element for many ProductTypes in Industrial.xsd
I am using feed type POST_PRODUCT_DATA to add new product item.

<Product>
  <SKU>{MYSKU}</SKU>
  <StandardProductID><Type>EAN</Type><Value>{MYEAN}</Value></StandardProductID>
  <DescriptionData>
    <Title>{MYTILE}</Title>
    {SOME_OTHER_ATTRIBUTES}
  </DescriptionData>
  <ProductData>
    <Industrial>
      <ProductType>
        <TapeMeasure>
          <ContainsLiquidContents>false</ContainsLiquidContents>. 
          <IsTradeItemOrderableUnit>true</IsTradeItemOrderableUnit>                   
          <MeasurementAccuracy>Yes</MeasurementAccuracy>
          <NumberOfBoxes>1</NumberOfBoxes>
          <RequiredProductComplianceCertificate>No</RequiredProductComplianceCertificate>
        </TapeMeasure>
      </ProductType>
    </Industrial>
   </ProductData>
</Product>

As you can see, there is no IncludedComponents element for TapeMeasure ProductType in Industrial.xsd, so I did not set it in my XML.

But after submit the xml feed, the result says error like:

ResultCode: Error
ResultMessageCode: 99001
ResultDescription: A value is required for the "included_components" field.

How could I set value for included_components field then?

@chapmanjw Please give a look at this.