ADP1905 Specification of loader (similar to atk4.3)

TBC @gowrav

Few things from me:

• a way, how View can register it's a dependency on certain JS / CSS files.
• an API method to decide how to include that file (which can do nothing in case of minified combined js file)
• a JS method to dynamically load JS / CSS by adding them into the header
• ability to avoid duplication of loading same script multiple times
• an example with WYSIWYG component Summernote that could be loaded dynamically in a modal.

Extended

• On possible render on the component itself, should be able to return js on getJS() type of function from dynamic loading also. (For using such components as an indivdual component)

Currently, components can render them self but js doesn't get echo well. (Will put some test cases of this also)