* Added bottomTabFontSize and bottomTabSelectedFontSize properties for android tab bar

* Added tabFontSize and selectedTabFontSize properties to the doc

* Fix default values of bottomTabFontSize and bottomTabSelectedFontSize properties.

For example, the following code will start a single screen app with two
screens pushed into the stack.

```js
Navigation.startSingleScreenApp({
    components: [
    {
      screen: 'example.Types',
      title: 'Navigation Types',
      overrideBackPress: true
    },
    {
      screen: 'example.Types.CustomButtonScreen',
      title: 'Custom Buttons'
    }
  ]
});
```

* Refactor resetTo view controller creation into function

This will allow for multiple view controllers to call the same function to create their instance.

* Configure resetTo to take multiple components to set view controllers for

This allows for a navigation stack to be recreated with multiple view controllers rather than just one.

* Breakup view controller initializer into multiple lines for legibility

* Set titleBarSubTitleTextCentered as navigator style

- Adapt title center

* fixed false declaration

relates to #2711

fixes #2711

This reverts commit 90b47f7910.

Apparently runOnPreDraw is not enough anymore, possibly broke in RN 0.51

Support for react-native 0.52.0

Rename `DevCommandsHandlerProxy` to `DevHelperProxy` so it reflects the changes in RN. See d19afc73f5

Otherwise, if the users sets custom insets (additional insets), they override the system adjusted insets. This is not the expected behavior.

This reverts commit f7ec9ee840.

* Add support for setting larget title text attributes

* Add documentation for setting large text attributes

See https://developer.apple.com/documentation/uikit/uinavigationbar/2919946-largetitletextattributes

This reverts commit 883dcfe49f.

* fixes #2524