Added ripple effect on touch

[maickonn]

Now the ripple effect is triggered as soon as the user touches the screen. This causes a better user experience and better mimics the native effect.

Previously the ripple effect was triggered only when the user took the finger off the screen.

The ripple on touch can be disabled by rippleOnTouch property.

[maickonn]

I renamed the property rippleOnTouch to rippleOnPressIn.

[maickonn]

Hello @n4kz , you have any position about this pull request?

[erhanbicer]

@Maickonn good job! also, when you lift your finger, it's better if the animation ends