remove pagination and make jstree default collapsed.

hyrax/app/assets/javascripts/jstree_init.js

...llers/hyrax/crc_datasets/complex_modalities_controller.rb

...rollers/hyrax/crc_datasets/complex_sessions_controller.rb

...rollers/hyrax/crc_datasets/complex_subjects_controller.rb

hyrax/app/presenters/hyrax/crc_dataset_presenter.rb

hyrax/app/views/hyrax/crc_datasets/_all_children.html.erb

...views/hyrax/crc_datasets/complex_modalities/show.html.erb

...p/views/hyrax/crc_datasets/complex_sessions/show.html.erb

...p/views/hyrax/crc_datasets/complex_subjects/show.html.erb