feat(ngTouch): add optional ngSwipeDisableMouse attribute to ngSwipe

Request Type: feature

How to reproduce: 

Component(s): ngTouch

Impact: small

Complexity: small

This issue is related to: 

**Detailed Description:**



**Other Comments:**

add optional ngSwipeDisableMouse attribute to ngSwipe directives to ignore mouse events
This is a proposal for https://github.com/angular/angular.js/issues/6626 opened by @nesQuick 

Let's discuss this.
If it's okay - we should also extend the docs.