Installation requirements are not included in the initial requirements

[cbitterfield]

The npm modules

COLOR FIELD LIBRARY: JQUERY SIMPLE COLOR
COLOR FIELD LIBRARY: SPECTRUM

These modules not installed in the initial installation. This is eluded to in the readme, but should be added

Adding the modules with:
composer require bower-asset/jquery-simple-color bower-asset/spectrum

Leads to a hanging message:
server:~/commerce$ composer update

DrupalProject\composer\ScriptHandler::checkComposerVersion
Loading composer repositories with package information
Updating dependencies (including require-dev)