feat(android): improve accessibility text

[m1ga]

By default all views/items will have say "double click to activate and for a long press double click and hold". Most items don't use a long press/click so it would be nice to deactive that message. This PR will add accessibilityDisableLongPress that you can use to disable that message.

Test:

• enable TalkBak
• run the code below
• click the label: old behavior - will say double click and long click
• click the button: new behavior - will only say "double click to activate"

var win1 = Titanium.UI.createWindow({layout:"vertical"});
var text1 = Titanium.UI.createLabel({text: 'Hello Wold'});

var button = Titanium.UI.createButton({
  title: 'button',
  accessibilityHint: "click",
  accessibilityLabel: "button",
  accessibilityValue: "click me",
  accessibilityDisableLongPress: true
});

win1.add([text1, button]);
win1.open();

[cb1kenobi]

Looks good! APPROVED!