Story
=====
As an XBlock developer,
I want to know which XBlocks are installed
so I can debug (and know which to add to Advanced Settings in Studio).
Testing
=======
- `make studio-shell`
- `python scripts/xblock/list-installed.py`
Integration
===========
I plan to invoke this from `devstack` (after installing XBlocks).
Tickets
=======
Fixes CENG-95
Fixesstvstnfrd/openedx-meta#153