DevTools: Provide full file path for React Native component stacks

## Overview In React Native, we're working on a new RedBox experience for errors and warnings called LogBox. In LogBox, we separate out component stack traces and show them similar to call stacks. We'd like to be able to tap on these components and open them (like we can with call stacks). ## Solutions In React we have the full file path context, but when we build the component stack trace, we strip the full path so that it displays only the file name. There are two options to achieve this: - For React Native, don't strip the full path [here](https://github.com/facebook/react/blob/b438699d3620bff236282b049204e1221b3689e9/packages/react-devtools-shared/src/backend/describeComponentFrame.js#L25). This will result in longer component stack messages with every frame having the full path. - Keep the message the same, and instead add structured component stack frame info including the full file path.