feat: Several product interfaces added.

[kidunot89]

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What does this implement/fix? Explain your changes.

Adds 5 new product interfaces for cleaner product queries.

• DownloadableProducts
• InventoriedProducts
• ProductsWithPricing
• ProductsWithDimensions
• ProductsWithVariations

query ( $id: ID!, $format: PostObjectFieldFormatEnum ) {
	product(id: $id) {
		id
		databaseId
		name
		slug
		date
		modified
		status
		featured
		catalogVisibility
		description(format: $format)
		shortDescription(format: $format)
		sku
		dateOnSaleFrom
		dateOnSaleTo
		totalSales
		averageRating
		reviewCount
		onSale
		purchasable
		link
		reviewsAllowed
		purchaseNote
		menuOrder
		... on ProductsWithPricing {
			price
			regularPrice
			salePrice
			taxStatus
			taxClass
		}
		... on InventoriedProducts {
			manageStock
			stockQuantity
			backorders
			soldIndividually
			backordersAllowed
			stockStatus
		}
		... on ProductsWithDimensions {
			weight
			length
			width
			height
			shippingClassId
			shippingRequired
			shippingTaxable
		}
		... on DownloadableProducts {
			virtual
			downloadExpiry
			downloadable
			downloadLimit
		}
	}
}

Does this close any currently open issues?

…

Any relevant logs, error output, GraphiQL screenshots, etc?

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Any other comments?

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Where has this been tested?

• WooGraphQL Version: …
• WPGraphQL Version: …
• WordPress Version:
• WooCommerce Version: