Add Rake task for generating wallets

lib/tasks/lndhub.rake

@@ -0,0 +1,8 @@
+namespace :lndhub do
+  desc "Generate wallets for all users"
+  task :generate_wallets => :environment do |t, args|
+    User.all.each do |user|
+      CreateLndhubWalletJob.perform_later(user)
+    end
+  end
+end