ENH: first pass at latform-diff and latform-gitdiff

Author: ken-lauer

pyproject.toml

@@ -40,6 +40,8 @@ file = "LICENSE"
 "latform" = "latform.main:cli_main"
 "latform-graph" = "latform.graph:cli_main"
 "latform-dump" = "latform.dump:cli_main"
+"latform-diff" = "latform.diff:cli_main"
+"latform-gitdiff" = "latform.diff:cli_main_gitdiff"
 
 [tool.ruff]
 # Reference and defaults: https://docs.astral.sh/ruff/configuration/