Issue when installing compiledcode

I get the following error when I install `binary-analysis/scancode-compiledcode/`.

```
(scancode-toolkit) jono@mingus:~/nexb/src/scancode-plugins/binary-analysis
$ scancode -h
========================================================================
ERROR: UNABLE TO IMPORT SCANCODE PLUGINS.
Check your installation configuration (setup.py) or re-install/re-configure ScanCode.
The following plugin(s) are referenced and cannot be loaded/imported:
No module named 'sourcecode'
========================================================================
Traceback (most recent call last):
File "/home/jono/nexb/src/scancode-toolkit/bin/scancode", line 33, in
sys.exit(load_entry_point('scancode-toolkit', 'console_scripts', 'scancode')())
File "/home/jono/nexb/src/scancode-toolkit/bin/scancode", line 25, in importlib_load_entry_point
return next(matches).load()
File "/home/jono/nexb/src/scancode-toolkit/lib/python3.6/site-packages/importlib_metadata/__init__.py", line 167, in load
module = import_module(match.group('module'))
File "/usr/lib/python3.6/importlib/__init__.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "", line 994, in _gcd_import
File "", line 971, in _find_and_load
File "", line 955, in _find_and_load_unlocked
File "", line 665, in _load_unlocked
File "", line 678, in exec_module
File "", line 219, in _call_with_frames_removed
File "/home/jono/nexb/src/scancode-toolkit/src/scancode/cli.py", line 122, in
raise e
File "/home/jono/nexb/src/scancode-toolkit/src/scancode/cli.py", line 109, in
plugin_classes, plugin_options = PluginManager.load_plugins()
File "/home/jono/nexb/src/scancode-toolkit/lib/python3.6/site-packages/plugincode/__init__.py", line 207, in load_plugins
mgr_setup = manager.setup()
File "/home/jono/nexb/src/scancode-toolkit/lib/python3.6/site-packages/plugincode/__init__.py", line 233, in setup
raise e
File "/home/jono/nexb/src/scancode-toolkit/lib/python3.6/site-packages/plugincode/__init__.py", line 231, in setup
self.manager.load_setuptools_entrypoints(entrypoint)
File "/home/jono/nexb/src/scancode-toolkit/lib/python3.6/site-packages/pluggy/manager.py", line 299, in load_setuptools_entrypoints
plugin = ep.load()
File "/home/jono/nexb/src/scancode-toolkit/lib/python3.6/site-packages/importlib_metadata/__init__.py", line 167, in load
module = import_module(match.group('module'))
File "/usr/lib/python3.6/importlib/__init__.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "", line 994, in _gcd_import
File "", line 971, in _find_and_load
File "", line 953, in _find_and_load_unlocked
ModuleNotFoundError: No module named 'sourcecode'
```