Do not override element visibility at slide change if it is controlled

At slide change, do not set element visibility to slide initial value, if

a) visibility (eyeball) is controlled by datainput

b) datainput has received a value

c) element is on master slide.

This eliminates the behavior where element visibility can be set to true on one slide via datainput, and at slide change to false by the initial values of second slide.

In this case setting datainput value again to true does not generate a change event, as datainput cached value is not changing. This results in visibility setting not carrying over from slides.