support a configuration to disable touch behavior

User Story

1. As an application developer, I want to enable/disable the touch behavior (e.g. meshwidget-touch.js) by the configuration, so that when I don't need touch related behaviors, I can remove them. For example, ZK detects a laptop with a touch screen and run touch related js, but users just want desktop browser behavior.

Acceptance Criteria

can configure this behavior with a library property

Details

1. org.zkoss.zkmax.tablet.ui.disabled can't disable loading touch related js
2. this line zk.touchEnabled = !!zk.mobile || navigator.maxTouchPoints > 0; is in zk.jar/zk.wpd which is hard to override. Suggest to put js code inside a js file instead of wpd file, so that it's easier to override in the future.

Workaround

replace inputdevicecapabilities-polyfill.js with zk.touchEnabled = false;, replace domtouch.js and zswipe.js with empty files.