Start a new module for Drupal 8 that is using html5 library

Hi All,

I am trying to write a new module that will contribute to the community that is using html5 library here http://html5box.com/html5gallery/index.php.

This will be goo for videos and images gallery.

Read through the document for drupal 8 module development here https://drupal.org/node/1915030 which is an incomplete.
I also follow the series of tutorial here http://getlevelten.com/blog/ian-whitcomb/drupal-8-module-development-par... to understand the .info.yalm, .routing.yml, and the MVC (Model View Controller). Seem to be very promising.

My first question is where should I place the library downloaded?
The second question is that I intent to have the library integrated with views as a plugin. So let say under views => Format => HTML5 Gallery.
Then the views display, I need to add to the container html div certain class and settings to make the library work such as

I haven't try to integrate anything with view before, so if anyone could help shed me a light so that I can start and then finish this module. I goal is to contribute back to the community since I really like this kind of gallery that work fine in all desktop, tablet, mobile devices.

Thanks