JS: ensure that the 'Show Labels' button is respected after loading a model
JS: ensure that the 'Show Labels' button is respected after loading a model

Temporary lables with default inputs are not saved in the input file and
must be regeneratd.

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

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