Test::Selenium::Remote::Role::DoesTesting - better description for send_keys_ok()

currently send_keys_ok() has a test description equal to 'send_keys'.  So my tests look like this:

    ok 1 - send_keys
    ok 2 - send_keys
    ok 3 - send_keys

This pr will change it to look like:

    ok 1 - send_keys 'FirstName'
    ok 2 - send_keys 'LastName'
    ok 3 - send_keys '(123) 123-1234'