JS: revise the code for adding the Colour Chooser to the drop down menu for ColorEditor
JS: revise the code for adding the Colour Chooser to the drop down menu for ColorEditor

Signed-off-by: Harry King <409587b9e6671aa0763646191d292852dc49a658@gmail.com>

jaamsim/jaamsim,jaamsim/jaamsim,jaamsim/jaamsim,jaamsim/jaamsim