DEVDOCS-6599 - Update product include fields (#1156)

Updated product catalog to include new fields and reorder existing ones.

<!-- Ticket number or summary of work -->
# [DEVDOCS-6599]


## What changed?
<!-- Provide a bulleted list in the present tense -->
* Added supported fields for `include` parameter per slack request
  * images
  * primary_image
  * variants
* Performed testing for all relevant endpoints related to the schema to
confirm the fields were valid

## Release notes draft
* We've added some previously missing fields to the `include` parameter
for Get a Product, Get All Products, and Update a Product.
*
https://developer.bigcommerce.com/docs/rest-catalog/products#get-all-products

## Anything else?
<!-- Add related PRs, salient notes, additional ticket numbers, etc. -->

ping { @bigcommerce/dev-docs-team }


[DEVDOCS-6599]:
https://bigcommercecloud.atlassian.net/browse/DEVDOCS-6599?atlOrigin=eyJpIjoiNWRkNTljNzYxNjVmNDY3MDlhMDU5Y2ZhYzA5YTRkZjUiLCJwIjoiZ2l0aHViLWNvbS1KU1cifQ

Author: bc-terra

reference/catalog/products_catalog.v3.yml

@@ -5813,12 +5813,15 @@ components:
         type: string
         enum:
           - bulk_pricing_rules
-          - reviews
+          - channels
+          - custom_fields
+          - images
           - modifiers
           - options
           - parent_relations
-          - custom_fields
-          - channels
+          - primary_image
+          - reviews
+          - variants
           - videos
     product_Put:
       title: product_Put