Add streaming archetypes

[mihael]

this is going to be a juggling of Hugo archetypes and also half automated writing of content.

a transformation of a picture and some text attributes into Hugo content pages. or whatever static site generator it will be in the future.

let's see this happen:

• .1 add ability to read archetypes of the current theme themes/theme/archetypes and/or archetypes
• .2 add ability to write out a html form for an archetype
• .3 add ability to process the form submitted data and write out a new content file, or update it if it exists

[mihael]

Decided to ditch this completely, instead just streamline generating archetypes at the Panel UI / Stream form...