This patch adds capsule panel that includes capsule list view.
Other views and actions will be implemented in subsequent patches.
To enable this panel, copy enabled file[1] to horizon enabled
directory[2] and restart horizon.
[1] zun_ui/enabled/_1332_project_container_capsules_panel.py
[2] openstack_dashboard/local/enabled/
Change-Id: I6d89704a8fe4fa32cee52bbf2c38e0b10cd01f1a
Partial-Implements: blueprint capsule
247af4b88b