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/package.json

@@ -0,0 +1,16 @@
+{
+    "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": "*"
+    }
+}