Review filter capabilities and log both that work and does not

[seb86]

Since the documentation has been left outdated, being able to use the Products API has become difficult. Testing has also been at a stand still when it comes to the Products API. That is a major oversight on my part as I have been more focused on the Cart API and the structure of the plugin more than anything else.

This issue will track examples on how to use the Products API to be added to the new documentation and what is failing and needs to be fixed or improved upon. Anything that can be fixed as a patch will be applied to the current version of CoCart while others that will take much more time will be applied to the next version of CoCart were it can be beta tested before final release.

If you know of an issue that has yet to be reported or have struggled with filtering the Products API in a certain way that is within the possibility of the core of WooCommerce and not an extension, then please comment in this discussion.