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

@@ -0,0 +1,21 @@
+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 }
+});