The "childs" elements of <Svg> overlaps the "root" element

Bug

When we put any element(Rect, Circle, Symbol) and set the position "off-svg", they overlaps the <Svg> limits and shapes.

Unexpected behavior

The <Svg> element has borderRadius, but the "yellow" <Rect> overlaps his shape.

This is different from what happens in the browser:

import * as React from 'react';
import { View, StyleSheet } from 'react-native';
import { Svg, Rect } from 'react-native-svg';

export default function App() {
  return (
    <View style={styles.container}>
      <Svg width="300" height="120" style={{borderRadius:15, backgroundColor: 'purple'}} viewBox="0 0 300 120">
      <Rect x="0" y="0" width="100" height="120" fill="yellow"/>
    </Svg>
    </View>
  );
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
    alignItems: 'center',
    justifyContent: 'center'
  }
});

https://snack.expo.io/@igao92/svg-overlapping

Environment info

React native info output:

 System:
    OS: Windows 10 10.0.18362
    CPU: (8) x64 Intel(R) Core(TM) i7-7700K CPU @ 4.20GHz
    Memory: 7.57 GB / 15.94 GB
  Binaries:
    Node: 13.12.0 - C:\Program Files\nodejs\node.EXE
    Yarn: 1.21.1 - C:\Program Files (x86)\Yarn\bin\yarn.CMD
    npm: 6.14.4 - C:\Program Files\nodejs\npm.CMD
    Watchman: Not Found
  SDKs:
    Android SDK: Not Found
  IDEs:
    Android Studio: Version  3.6.0.0 AI-192.7142.36.36.6308749
  Languages:
    Python: 2.7.17 - C:\Python27\python.EXE
  npmPackages:
    @react-native-community/cli: Not Found
    react: 16.11.0 => 16.11.0
    react-native: 0.62.0 => 0.62.0
  npmGlobalPackages:
    *react-native*: Not Found

Library version: ^12.0.3

Steps To Reproduce

1. Import the react-native-svg to file
2. Create an <Svg> component
3. Style it with borderRadius:15, for example
4. Put any element inside <Svg>(Circle, Rect, Polygon, etc...)
5. Set it "off-svg" component, with style or coordinates props (x, y)
6. npx react-native run-android

Describe what you expected to happen:

1. The elements inside the <Svg> must respect dimensions and shapes(like border radius).

Start with the provided Expo reproduction and run the example on Android to observe how an off-SVG Rect interacts with an Svg using borderRadius. Compare the Android result with the linked browser example, then trace the relevant react-native-svg rendering path. Done means child shapes respect the Svg dimensions and rounded boundary.