Add fishing trigger

[RSwoop]

See https://forums.minecraftforge.net/topic/62454-1122-does-the-event-exist-when-the-bait-is-bitten-by-fishing-in-the-water/

[allanf181]

https://github.com/North-West-Wind/forge-autofish/blob/master/src/main/java/ml/northwestwind/forgeautofish/handler/AutoFishHandler.java#L125