JS: allow colours with multiple names
JS: allow colours with multiple names

For example, Aqua = Cyan and Fuchsia = Magenta.

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

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