Replace TSPlayer.IgnoreActionsForCheating w/ boolean

This replaces IgnoreActionsForCheating in TSPlayer with a new
IsDisabledForStackDetection field that tracks the same basic data.

The previous way we did this was storing a string as the "reason"
why a player was disabled for cheating, but it only stored the last
hacked item stack that caused the check to fail. Since we already
have OnSecondUpdate which notifies on _all_ items, we don't need
to store this info in such a useless way anyway. They'll find out
in one second what they need to remove in a more alarmist way.

TShockAPI/TShock.cs

@@ -1106,7 +1106,7 @@ namespace TShockAPI
 								break;
 							}
 						}
-						player.IgnoreActionsForCheating = check;
+						player.IsDisabledForStackDetection = true;
 						check = "none";
 						// Please don't remove this for the time being; without it, players wearing banned equipment will only get debuffed once
 						foreach (Item item in player.TPlayer.armor)