always install submodule dependencies when updating

This way the user will always check on whether the submodule needs any new dependencies when updating it.

Author: manumerous

Makefile

@@ -9,6 +9,7 @@ data_selection?=False
 
 submodulesupdate:
 	git submodule update --init --recursive
+	pip3 install -r Tools/parametric_model/visual_dataframe_selector/requirements.txt
 
 install-dependencies:
 	pip3 install -r Tools/parametric_model/requirements.txt