fix - script_tools installation script (#23)

* fix - make new changes to script_tools update-able

* fix - add verbosity for more clearer understanding

* fix - making a force overwrite instead

install_script_tools.sh

@@ -49,7 +49,7 @@ fi
 
 cd $PIHOME/$DEXTER/$LIB/$DEXTER/$SCRIPT
 sudo apt-get install build-essential libi2c-dev i2c-tools python-dev libffi-dev -y
-python setup.py install
-python3 setup.py install
+python setup.py install --force
+python3 setup.py install --force
 
 popd > /dev/null