feat: add cmi to pyproject.toml for CLI

Author: cadenmyers13

pyproject.toml

@@ -50,6 +50,7 @@ namespaces = false  # to disable scanning PEP 420 namespaces (true by default)
 
 [project.scripts]
 diffpy-cmi = "diffpy.cmi.app:main"
+cmi = "diffpy.cmi.app:main"
 
 [tool.setuptools.dynamic]
 dependencies = {file = ["requirements/pip.txt"]}