move flutter_filament plugin to federated structure

flutter_filament_federated/flutter_filament_web/lib/flutter_filament_web.dart

@@ -0,0 +1,41 @@
+import 'package:dart_filament/dart_filament/abstract_filament_viewer.dart';
+import 'package:flutter_filament_platform_interface/flutter_filament_platform_interface.dart';
+import 'package:flutter_filament_platform_interface/flutter_filament_texture.dart';
+import 'package:flutter_web_plugins/flutter_web_plugins.dart';
+import 'package:dart_filament/dart_filament/compatibility/web/interop/dart_filament_js_extension_type.dart';
+import 'package:dart_filament/dart_filament/compatibility/web/interop/js_interop_filament_viewer.dart';
+
+class FlutterFilamentWebPlugin extends FlutterFilamentPlatform {
+  static void registerWith(Registrar registrar) {
+    FlutterFilamentPlatform.instance = FlutterFilamentWebPlugin();
+  }
+
+  @override
+  Future<FlutterFilamentTexture?> createTexture(
+      int width, int height, int offsetLeft, int offsetRight) async {}
+
+  @override
+  Future destroyTexture(FlutterFilamentTexture texture) async {}
+
+  @override
+  void dispose() {
+    // TODO: implement dispose
+  }
+
+  @override
+  Future initialize({String? uberArchivePath}) async {
+    print("Creating viewer in web plugin");
+    viewer = JsInteropFilamentViewer("filamentViewer");
+    print("Waiting for initialized");
+    await viewer.initialized;
+    print("int complete");
+  }
+
+  @override
+  Future<FlutterFilamentTexture?> resizeTexture(FlutterFilamentTexture texture,
+      int width, int height, int offsetLeft, int offsetRight) async {}
+
+  @override
+  // TODO: implement viewer
+  late final AbstractFilamentViewer viewer;
+}