Add download orchestration and file management features

- Implemented Download Orchestrator for high-level model download lifecycle management, consolidating logic from various SDKs.
- Introduced File Manager for centralized file management operations, including directory creation, size calculation, and cache management.
- Updated GeneratedPluginRegistrant for new plugins: CameraAndroidCameraxPlugin and ImagePickerPlugin.
- Cleaned up and organized existing code for better maintainability.

Author: sanchitmonga22

examples/flutter/RunAnywhereAI/android/app/src/main/java/io/flutter/plugins/GeneratedPluginRegistrant.java

@@ -20,11 +20,21 @@ public static void registerWith(@NonNull FlutterEngine flutterEngine) {
     } catch (Exception e) {
       Log.e(TAG, "Error registering plugin audioplayers_android, xyz.luan.audioplayers.AudioplayersPlugin", e);
     }
+    try {
+      flutterEngine.getPlugins().add(new io.flutter.plugins.camerax.CameraAndroidCameraxPlugin());
+    } catch (Exception e) {
+      Log.e(TAG, "Error registering plugin camera_android_camerax, io.flutter.plugins.camerax.CameraAndroidCameraxPlugin", e);
+    }
     try {
       flutterEngine.getPlugins().add(new dev.fluttercommunity.plus.device_info.DeviceInfoPlusPlugin());
     } catch (Exception e) {
       Log.e(TAG, "Error registering plugin device_info_plus, dev.fluttercommunity.plus.device_info.DeviceInfoPlusPlugin", e);
     }
+    try {
+      flutterEngine.getPlugins().add(new io.flutter.plugins.flutter_plugin_android_lifecycle.FlutterAndroidLifecyclePlugin());
+    } catch (Exception e) {
+      Log.e(TAG, "Error registering plugin flutter_plugin_android_lifecycle, io.flutter.plugins.flutter_plugin_android_lifecycle.FlutterAndroidLifecyclePlugin", e);
+    }
     try {
       flutterEngine.getPlugins().add(new com.it_nomads.fluttersecurestorage.FlutterSecureStoragePlugin());
     } catch (Exception e) {
@@ -35,6 +45,11 @@ public static void registerWith(@NonNull FlutterEngine flutterEngine) {
     } catch (Exception e) {
       Log.e(TAG, "Error registering plugin flutter_tts, com.tundralabs.fluttertts.FlutterTtsPlugin", e);
     }
+    try {
+      flutterEngine.getPlugins().add(new io.flutter.plugins.imagepicker.ImagePickerPlugin());
+    } catch (Exception e) {
+      Log.e(TAG, "Error registering plugin image_picker_android, io.flutter.plugins.imagepicker.ImagePickerPlugin", e);
+    }
     try {
       flutterEngine.getPlugins().add(new dev.fluttercommunity.plus.packageinfo.PackageInfoPlugin());
     } catch (Exception e) {

examples/flutter/RunAnywhereAI/ios/Runner/GeneratedPluginRegistrant.m

@@ -12,6 +12,12 @@
 @import audioplayers_darwin;
 #endif
 
+#if __has_include(<camera_avfoundation/CameraPlugin.h>)
+#import <camera_avfoundation/CameraPlugin.h>
+#else
+@import camera_avfoundation;
+#endif
+
 #if __has_include(<device_info_plus/FPPDeviceInfoPlusPlugin.h>)
 #import <device_info_plus/FPPDeviceInfoPlusPlugin.h>
 #else
@@ -30,6 +36,12 @@
 @import flutter_tts;
 #endif
 
+#if __has_include(<image_picker_ios/FLTImagePickerPlugin.h>)
+#import <image_picker_ios/FLTImagePickerPlugin.h>
+#else
+@import image_picker_ios;
+#endif
+
 #if __has_include(<package_info_plus/FPPPackageInfoPlusPlugin.h>)
 #import <package_info_plus/FPPPackageInfoPlusPlugin.h>
 #else
@@ -94,9 +106,11 @@ @implementation GeneratedPluginRegistrant
 
 + (void)registerWithRegistry:(NSObject<FlutterPluginRegistry>*)registry {
   [AudioplayersDarwinPlugin registerWithRegistrar:[registry registrarForPlugin:@"AudioplayersDarwinPlugin"]];
+  [CameraPlugin registerWithRegistrar:[registry registrarForPlugin:@"CameraPlugin"]];
   [FPPDeviceInfoPlusPlugin registerWithRegistrar:[registry registrarForPlugin:@"FPPDeviceInfoPlusPlugin"]];
   [FlutterSecureStoragePlugin registerWithRegistrar:[registry registrarForPlugin:@"FlutterSecureStoragePlugin"]];
   [FlutterTtsPlugin registerWithRegistrar:[registry registrarForPlugin:@"FlutterTtsPlugin"]];
+  [FLTImagePickerPlugin registerWithRegistrar:[registry registrarForPlugin:@"FLTImagePickerPlugin"]];
   [FPPPackageInfoPlusPlugin registerWithRegistrar:[registry registrarForPlugin:@"FPPPackageInfoPlusPlugin"]];
   [PathProviderPlugin registerWithRegistrar:[registry registrarForPlugin:@"PathProviderPlugin"]];
   [PermissionHandlerPlugin registerWithRegistrar:[registry registrarForPlugin:@"PermissionHandlerPlugin"]];