added an option to enable/disable the old reroll method through Mod Config Menu.

- commented part of the code that uses Repentogon functions (and that are not needed for the normal use of this mod... maybe this part of the code can cause problems to users that do not have Repentogon installed).

- Rerolls will NOT exhaust the current room itempool (i.e. rerolls will NOT count towards breakfasting).
Note: only the starting collectible and the one you will pick up will be removed from the itempool.
- Works only in one treasure room for each floor (useful in case of Curse of the labyrinth is present).

- better code
- significantly better performance (24,5 times better)
- fix for Jacob & Esau

fix (now the reroll works only in the first treasure room as planned...)

- Added support for controller/gamepad (now you can activate the reroll by pressing the RS button, i.e. the right analog stick).
- Now the reroll will be called by the player who actually presses the button and not always by player 0.
- Changed the onNewLevel callback with onGameStart callback (so now the mod will work even if you exit and re-enter your run while you are still in the first floor... and will not check the all the new floors).

Better code: now the mod adds/removes the callbacks only if they are not present/present.
(Before the mod was trying to remove some callbacks even if they were not present anymore).

Better code: now the mod checks the input from the keyboard only if you are in the first treasure room.
(Before the mod was always checking the input... and considering that the game do it 1470 times per second, it is better to do it only when necessary...)

just a detail in the code...

Bug fix: now the mod does not allow the player to reroll the item in the treasure room on Downpour 1 and Dross 1.