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

package.json

@@ -0,0 +1,13 @@
+{
+    "name": "mapsdk-monorepo",
+    "private": true,
+    "workspaces": [
+        "packages/*",
+        "example"
+    ],
+    "scripts": {
+        "bootstrap": "npm install",
+        "build": "npm run -w @lynkedup/map-sdk build",
+        "start:example": "npm run -w example start"
+    }
+}