[foundation] model features

[insaint03]

• [x] singleliner pattern (type) title <link> long_description > extending at project license, contributors, links
• [x] template datatype relavancy (origin|item) datatype pattern & template properties, extending at template datatypes, request.body, response.body
• [x] inheritage mixing for templates to entities
• [x] quick combinates generator for multiple datatypes x templates

[insaint03]

template / entity datatype relavancy follows there context:

• case on template relavancy template.datatype
  • which only active if the template has tagname
  • recommends relavant datatypes prior then others, on selection
• case on template request and/or response properties template.request.body, template.response.body
  • restricts candidate datatype list to only derivatives of the type
• case on entity request and/or response property entity.request.body, template.response.body
  • fixed the exact datatype