Add script to clean submodules

Author: maxdeviant

justfile

@@ -6,7 +6,10 @@ package-extensions:
 submodules:
     git submodule update --init --recursive
 
-# Resets all of the Git submodules containing extensions.
-reset-submodules:
+# Cleans all of the Git submodules containing extensions.
+clean-submodules:
     git submodule deinit --force .
+
+# Resets all of the Git submodules containing extensions.
+reset-submodules: clean-submodules
     git submodule update --init --recursive