Anki add-on: Default Answer Modified

This is quite a simple plugin which modifies the default answer. When meeting new cards, the default answer is Easy(3), since at most of the time, if you already know the answer to a never-seen question, you should be very familiar with it. In other cases, the default answer is 2, aka, Good when learning and Hard when reviewing. It is useful for those who think that the default interval is too long but prefer only to use Enter or Space key to proceed.