[V2][iOS] Additional mergeOptions BottomTab Support (#4704)
[V2][iOS] Additional mergeOptions BottomTab Support (#4704)

* Added missing mergeOptions for text, icon, selectedIcon, textColor, selectedTextColor, iconColor, selectedIconColor, badgeColor

* Minor changes

3sidedcube/react-native-navigation,wix/react-native-navigation,wix/react-native-navigation,ceyhuno/react-native-navigation,thanhzusu/react-native-navigation,wix/react-native-navigation,thanhzusu/react-native-navigation,guyca/react-native-navigation,ceyhuno/react-native-navigation,ceyhuno/react-native-navigation,Jpoliachik/react-native-navigation,wix/react-native-navigation,thanhzusu/react-native-navigation,guyca/react-native-navigation,guyca/react-native-navigation,3sidedcube/react-native-navigation,Jpoliachik/react-native-navigation,ceyhuno/react-native-navigation,Jpoliachik/react-native-navigation,chicojasl/react-native-navigation,chicojasl/react-native-navigation,guyca/react-native-navigation,ceyhuno/react-native-navigation,chicojasl/react-native-navigation,Jpoliachik/react-native-navigation,3sidedcube/react-native-navigation,chicojasl/react-native-navigation,Jpoliachik/react-native-navigation,thanhzusu/react-native-navigation,3sidedcube/react-native-navigation,wix/react-native-navigation,thanhzusu/react-native-navigation,thanhzusu/react-native-navigation,ceyhuno/react-native-navigation,chicojasl/react-native-navigation,Jpoliachik/react-native-navigation,wix/react-native-navigation,chicojasl/react-native-navigation