Android/iOS/Windows: Added ScrollableView unit test "moveX-scrollTo". Replaces "moveNext" and "movePrev".
Android/iOS/Windows: Added ScrollableView unit test "moveX-scrollTo". Replaces "moveNext" and "movePrev".

- Successfully tested on Android and iOS. (Have not tested on Windows.)

mano-mykingdom/titanium_mobile,mano-mykingdom/titanium_mobile,mano-mykingdom/titanium_mobile,mano-mykingdom/titanium_mobile,mano-mykingdom/titanium_mobile,mano-mykingdom/titanium_mobile,mano-mykingdom/titanium_mobile,mano-mykingdom/titanium_mobile