* Add catalog_visibility param to products api
This adds a catalog_visibility=visible option to the product api which
will filter out any products that are excluded from the catalog.
* Add product_visibility phpunit test
* Add catalog_visibility for catalog, search, hidden
* Fix util js test
The util js test checks for query parameters, so this adds the
category_visibility = 'visible' param.
* Updated for comments
1. Added collection params
2. moved catalog_visibility default with others
* Move from a JS file per block registration to one file registering all blocks
This will let webpack combine shared libraries, like gridicons
* Move global block settings to the “before all scripts” section
These shouldn’t be tied to a specific block file, since they’re used across all blocks
* Register both block types
We can also remove the scripts, since we enqueue these below
* Update getShortcode & getQuery to handle different block types
* Pass block type name to getQuery
* Update shared attributes - edit_mode is not a universal option, but categories will be
Categories is shared, but orderby is not
* Add “Best Selling Products” block
* Add a shared class name for product grid blocks
* Fix failing tests
* Load only published products in the preview
* Fix post status in legacy block too
* Filter searching for individual products to only search published products
* Update query tests with change
* Add a second block, for “products by category”
* Fetch products in the given category, when attributes change
* Display the resulting products
* Style the product preview
* Create utils folder, move shared attributes
* Move getQuery to shared utils folder
* Create a helper function to get the shortcode string
* Support the menu_order setting
* Support center/wide/full alignment
* Update PropTypes
* Add tests
* Add text domain to translation functions
Kelly Dwan
Kevin Killingsworth