Add initial implementation of Map SDK and example app

- Create README for the main repository and example app
- Implement example app with MapView and Marker components
- Add package.json for example app with necessary scripts and dependencies
- Create Map SDK package with TypeScript wrapper around react-native-maps
- Define TypeScript configuration for the SDK

example/App.tsx

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+import React from 'react';
+import { SafeAreaView, StyleSheet } from 'react-native';
+import { MapView, Marker } from '@lynkedup/map-sdk';
+
+export default function App() {
+    return (
+        <SafeAreaView style={styles.container}>
+            <MapView
+                style={styles.map}
+                initialRegion={{ latitude: 37.78825, longitude: -122.4324, latitudeDelta: 0.0922, longitudeDelta: 0.0421 }}
+            >
+                <Marker coordinate={{ latitude: 37.78825, longitude: -122.4324 }} />
+            </MapView>
+        </SafeAreaView>
+    );
+}
+
+const styles = StyleSheet.create({
+    container: { flex: 1 },
+    map: { flex: 1 }
+});

example/README.md

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+# Example App
+
+This example demonstrates usage of `@lynkedup/map-sdk`.
+
+Setup:
+
+1. From repo root run `npm run bootstrap` to install workspace packages.
+2. From `example` run `npm install` to install native deps.
+3. iOS: run `npx pod-install ios` and add your Google Maps API key if you use Google provider.
+4. Android: ensure Google Play services and API keys are set in `AndroidManifest.xml` if using Google maps.
+
+Run:
+- `npm run ios` or `npm run android` from `example` folder.
+
+See `react-native-maps` docs for platform-specific instructions: https://github.com/react-native-maps/react-native-maps

example/package.json

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+{
+    "name": "example",
+    "private": true,
+    "version": "0.0.1",
+    "scripts": {
+        "start": "react-native start",
+        "ios": "react-native run-ios",
+        "android": "react-native run-android"
+    },
+    "dependencies": {
+        "react": "18.2.0",
+        "react-native": "0.71.0",
+        "react-native-maps": "^1.3.2",
+        "@lynkedup/map-sdk": "*"
+    }
+}