Select field with WordPress sources

[andreilupu]

Maybe we can build a dropdown with a custom source like post types or taxonomies/terms etc.

Also, this may need a search field or some sort of autocomplete system

[andreilupu]

For the moment there is a post_select and a tax_select implemented with http://react.semantic-ui.com/modules/dropdown

TODO List:

• More WP Query filters like post types or meta queries
• Add a Select All option
• Add a Remove all option like this [Dropdown] Reset / Clear icon for Semantic UI single selection dropdown. Semantic-Org/Semantic-UI#3635
• Add Featured image to the post_select