copy.js task should copy both .js and .js.map files to vendor

[smohadjer]

If I have in projectConfig.js this:

		externalResources: {
			'@webcomponents' : [
				'webcomponentsjs/webcomponents-bundle.js',
				'webcomponentsjs/webcomponents-bundle.js.map'
			]

Only the .js file ends up in vendor and not the .js.map file. Please add support for copying map files.

[SheepFromHeaven]

Moved to https://github.com/biotope/biotope-build/issues/421

[SheepFromHeaven]

Found the transfer functionality