function buildUibRouterIIFE(cb) {
    src(`${feModuleSrc}/uibrouter.js`)
        .pipe(gulpEsbuild({
            outfile: 'uibrouter.iife.js',
            bundle: true,
            format: 'iife',
            platform: 'browser',
            minify: false,
            sourcemap: false,
            target: [
                'es2020',
            ],
        }))
        .on('error', function(err) {
            console.error('[buildUibRouterIIFE] ERROR ', err)
            cb(err)
        })
        .pipe(dest('front-end/utils/'))
        .on('end', function() {
            cb()
        })
}
ESBuild front-end as IIFE (not minified)
@param {Function} cb Callback