Misc Mapping/Indexing enhancements

[mboynes]

• Revisit analyzer, see if anything makes sense to add or remove
• Store array of all ancestors
• Convert permalink to an object, store it analyzed, raw, extract the URI, and store an array of components
• Add array of shortcodes in posts
• Convert post_mime_type to object, store raw, type, and subtype. For instance, post_mime_type.type would be image, audio, video, etc. and post_mime_type.subtype would be png, mpeg, mp4, etc.
• Consider converting some objects to nested
• Add post thumbnail url