Accept HTMLX from npm modules: JSON / Function / class

[jazzyjackson]

Could be that : components can be required from file, which may be:

• JSON graph
• exported function that takes context and returns an object (more flexibility here to return conditionally)
• class that you pass the context to, allowing more complex interpolation

ctxify could check, if string - require object, check if function, class, or object, and ctxify accordinly