Allow Interactive Tooltips

Change to allow interactive tooltips:

Scenario: 
User hovers over button, tooltip is displayed which the user can then interact with. When the users mouse exits the tooltip, the tooltip disappears.

Essentially this allows binding the 'hide' trigger to the tooltip itself.

This is done by adding that attr tooltip-interactive="mouseenter" or some-tooltip-extension-interactive="someevent".

Using this will disable the trigger method. Event if an explicit trigger is defined, interactive mode will disable that trigger.