Changes to Sample metrics by product

added the new samples_approved enum value to the request property sort_by/anyOf[subschema #1]

added the new samples_shipped enum value to the request property sort_by/anyOf[subschema #1]

added the optional property data/items/samples_approved to the response with the 200 status

added the optional property data/items/samples_shipped to the response with the 200 status

response property data/items/approved deprecated

api operation id samples_by_product_endpoint_samples_by_product_post removed and replaced with samples_by_product