Add rake task to import bank_transactions

lib/tasks/foodsoft.rake

@@ -63,6 +63,17 @@ namespace :foodsoft do
     server.start
     server.join
   end
+
+  desc "Import and assign bank transactions"
+  task :import_and_assign_bank_transactions => :environment do
+    BankAccount.find_each do |ba|
+      import_method = ba.find_import_method
+      next unless import_method
+      import_count = import_method.call(ba)
+      assign_count = ba.assign_unlinked_transactions
+      rake_say "#{ba.name}: imported #{import_count}, assigned #{assign_count}"
+    end
+  end
 end
 
 # Helper