Add support for Bundle Products

[chrismshea]

Current Behavior

A bundle item can be enabled for subscription, but fails when being added to the cart.

Expected behavior

A subscription for a bundle product can be added to the cart, and re-orders created with the correct bundle options selected.

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Storing the bundled_product_items array when creating the subscription

We need to store the selected product items with the subscription in Subscribe Pro so that when the re-order is placed it will contain the correct items.

For each product selected in the bundle we include:

• product id
• quantity
• product name

Instructions here

Example showing current behavior with Bundled Items

An example can be seen here: https://zzvw-004.dx.commercecloud.salesforce.com/s/RefArch/99258.html?lang=en_US
Loom showing some strange behavior: https://www.loom.com/share/f5335736ada74e6d9791f7c0c164cf1a?sid=72fef078-a7e8-4030-b8cc-4fe8da8a2085

Additional Info

Bundle Options can be displayed on the My Subscription Widget using the following.