create settings segment component, create new section on settings page

components/settings/settings-segment.js

@@ -0,0 +1,21 @@
+import React from 'react'
+import PropTypes from 'prop-types'
+
+import { View } from 'react-native'
+import AppText from '../app-text'
+import styles from '../../styles'
+
+const SettingsSegment = ({ children, ...props }) => {
+  return (
+    <View style={styles.settingsSegment}>
+      <AppText style={styles.settingsSegmentTitle}>{props.title}</AppText>
+      {children}
+    </View>
+  )
+}
+
+SettingsSegment.propTypes = {
+  title: PropTypes.string.isRequired
+}
+
+export default SettingsSegment