Create BaseComponent (base generic component)

Base class for all generic components. 

• The component echoes all its params
  • In PMA, this is ootb
  • For FTL, the component will need to set the parametersinfo in the request, as an attribute

• Allows adding multiple JcrPath and ImageSetPath parameters
  • Finds all parameters of those 2 types, resolves the beans that are referenced and sets those beans as separate models in the request. 
    • In PMA, these will appear as top level {parametername - ref} entries under attribute models, for example:
      models:
 {

        carouselItem1: {ref: "xxx" },

        carouselItem2: {ref: "yyy" }
 
      }
    • In FTL, all beans are available as request attributes, strongly typed (HST beans), having as key_s_ their parametername_s_.
      They are accessible via FTL’s expression language, for example:
      ${carouselItem1.title?html}

Parameters 

Class
Class org.onehippo.cms7.essentials.components.EssentialsDocumentComponent can be used as a starting point (but no subclassing). The new class finds all parameters of type ImageSetPath and JcrPath.