Support ReactNative New architecture

[lemnik]

Goal

Support apps using ReactNative New Architecture.

Design

The Bugsnag native components have been adapted to be usable as both Native Modules or Turbo Modules, depending on the configuration of the app being built. A Turbo Module Spec was added to define the functions that can be triggered by the existing Bugsnag ReactNative JS code.

When loading the Bugsnag ReactNative NativeClient we check whether Turbo Modules are enabled and use the TurboModulesRegistry to access the native code if they are.

Android

For Android this involves splitting the Java code into 3 components:

• The common code, which was extracted from the existing module (and resides in the main sourceset)
• A Turbo Module facade - which implements the codegen class and forwards the method call to the common module
• A Native Module facade - which includes the @ReactMethod annotations and delegates to the common module

iOS

The iOS TurboModule is enabled by using conditional compilation flags (#ifdef).

Testing

A new test fixture was added for ReactNative 0.71 with New Architecture enabled.

[yousif-bugsnag]

changes LGTM, but the CI pipeline needs updating as we've moved all the RN tests over to bitbar now

updated

[github-actions]

@bugsnag/browser bundle size diff

	Minified	Minfied + Gzipped
Before	43.65 kB	13.39 kB
After	43.65 kB	13.39 kB
±	No change	No change

code coverage diff

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