feat: Implement file management and authorization features

- Add RequiresPermissionAttribute for gRPC method access control.
- Create IFileManagementService interface for file upload and management.
- Implement AddProductImageCommand and handler for adding product images.
- Implement CreateNewProductsCommand and handler for creating new products with image uploads.
- Implement DeleteProductsCommand and handler for deleting products and their associations.
- Implement RemoveProductImageCommand and handler for removing product images from galleries.
- Implement UpdateProductsCommand and handler for updating product details and images.
- Create GetProductGalleryQuery and handler for retrieving product galleries.
- Implement PermissionService for role-based access control using JWT claims.
- Implement FileManagementService for handling file uploads and image optimization.
- Define gRPC service and messages for file management in fms.proto.
- Add FluentValidation for request validation in various commands.
- Create PermissionInterceptor for enforcing permissions on gRPC methods.

src/CMSMicroservice.WebApi/appsettings.json

@@ -1,5 +1,8 @@
 {
   "UseRealPaymentGateway": false,
+  "FMS": {
+    "Address": "https://dl.afrino.co"
+  },
   "JwtSecurityKey": "TvlZVx5TJaHs8e9HgUdGzhGP2CIidoI444nAj+8+g7c=",
   "JwtIssuer": "https://localhost",
   "JwtAudience": "https://localhost",