* Add fontWeight support on iOS

* Add tests

* Fix tests

Add support for getLaunchArgs on Android

**Usage:** 

1. **Pass** args in order to run the application on the device using ADB or xcrun or Detox:
    - Detox: `device.launchApp(bundleId,{launchArgs: {'-key1': 'val1'}})` must use launchArgs key, see [docs](https://github.com/wix/Detox/blob/master/docs/APIRef.DeviceObjectAPI.md#7-additional-launch-arguments).
   - ADB: `adb shell am start -n com.yourpackage/com.yourpackage.YourActivity --es launchArgs "{some stringyfied json}"`
   - Xcrun: `/usr/bin/xcrun simctl launch ${udid} ${bundleId} --args -key1 value1 -key2 value2`

2. **Retrieve** the arguments: `const launchArgs = await Navigation.getLaunchArgs();`
   - There is a small difference between platforms on how they pass the launch args:
       - on iOS, the args will be passed as an array of pairs (argv,argc)
       - on Android, the args will be passed in the form of a dictionary 


Extract args as a dictionary example:
```javascript
const launchArgs = await Navigation.getLaunchArgs();
let resultArgs = {};
    if (Platform.OS === 'android') {
      resultArgs = launchArgs; // no need to proccess its a dictionary 
    } else {
      for (let i = 0; i < launchArgs.length; i += 2) {
        if (i + 1 < launchArgs.length) {
          resultArgs[launchArgs[i]] = launchArgs[i + 1];
        }
      }
    }
```

Improved stack and Sidemenu docs

With this change, dynamic colors will be supported when tinting an image and the image color will change on the fly depending on the dynamic provider and traits. This will be especially useful when supporting the new dark mode in iOS 13.

Apparently lockMode conflicts with visibility - If a menu is visible and lockMode locked is applied the menu closes.
Also removed temp code related to workaround introduced for temp sideMenu options (visibility)

This change ensures that the visibility option is applied only once.

Fixes #5444

FIx SideMenu options not being merged correctly with other options.

* Fix button with react component doesn't get unmounted

* Test e2e only on iOS

Break all the PRs :(

iOS and Android code base used different naming conventions - this commit aims to unify naming conventions. I probably missed a few properties here and there so this will be an ongoing effort.

There is no need to call `setDefaultOptions` on the `childViewController` while iterating the `childViewControllers` as those will be passed recursively as `rootViewController` anyway and thus calling `setDefaultOptions` in the nested recursive call.

When setRoot is called with `waitForRender=true`, check if the root view is destroyed before displaying it.

* Don't cache values for constants() call

The reason we can not cache the values is because the implementation differs per OS. Android returns static values while iOS will actually crawl the layout and return it's heights. The caching mechanism here meant that iOS would only return the heights of the layout it calculated the first time.

* Update docs regarding inconsistencies in Constants

* updated Third Party libs

* add fab styling

* removed alignVertically

* Enabled option was wrongly consumed after it was merged. That meant that the next time SideMenu options were applied, the wrong enabled value was applied
* supportedInterfaceOrientations didn't take default orientation value into account
* mergeOptions didn't save the new options in the ViewControllers current options
* SideMenu always returned the centre ViewController as the current child and didn't take open SideMenu into account

Fixes #5444

This is already defined in UIViewController+LayoutProtocol and depending 
on the load order will actually prevent the default orders from being 
set

Fixed Android's native setStackRoot animation and added animation support for Android's setStackRoot.

The backButton options are always applied. Even when one of its values has changed in mergeOptions.
This commit adds a function to apply the backButton, and should probably replace the existing rnn_setBackButtonIcon - as that function does more than just set the icon, it sets all options.

Merging TopBar title, buttons and status bar options is broken on iOS in 3.1.1.
Parent options aren't resolved properly and default options aren't regarded when they should be.

Should fix a lot of the warnings when doing a clean yarn install

* fix #4625

* fixed renamed property

When defaultOptions are set after setRoot has been called presenters need to receive the default options as well,
otherwise the outdated default options are regarded.
Fixes #5395

Hermes doesn't support Proxy ¯\_(ツ)_/¯

This commit adds initial support for passing null as a valid value for color properties.
When a color property is applied, if it wasn't specified then the default color is applied. Now, when null is passed, no color will be applied
leaving the last color applied as is.

This is useful when showing an Overlay and you'd like to keep the current StatusBar color unaffected. Another usecase would be when you'd like to avoid coloring an icon in BottomTabs.

Current numbering causes the line 
```In Xcode, you will need to edit this file: AppDelegate.m. This function is the main entry point for your app:```
to appear as instruction 1, not 3.

Originally PR'd in #5338 but since the diff was too big I'm committing it here.