For the "Hello" task, you will create a say action that reads
a message parameter from the request and displays that message back to the user. If the request
does not provide a message parameter, the action will display the default "Hello" message.
Info: Actions are the objects that end users can directly refer to for
execution. Actions are grouped by controllers. The execution result of
an action is the response that an end user will receive.
Actions must be declared in ...
