Isaac Challenge Mod

<!--
    Challenge Format:
* name = challenge name
* id = challenge id
* startingitems = comma separated (nospace) item ids that will be added at the start
* startingtrinkets = comma separated (nospace) trinket ids that will be added at the start (max 2)
* startingpill = effect id of the starting pill (-1 for no pill | default)
* startingcard = card id of the starting card (can include runes) (-1 for random tarot card, 0 for no card | default)
* playertype = player type id for player type to start with (0 for Isaac | default)
* endstage = the last stage of the challenge (use eLevelStage ids)
* roomfilter = list of room ids to not be generated in challenge [Not all room ids can be used] (NORMAL - 1, Shop - 2, Error - 3, Treasure - 4, Boss - 5, Miniboss - 6, Secret - 7, SuperSecret - 8, Arcade - 9, Curse - 10, Challenge - 11, Library - 12, Sacrifice - 13, Devil - 14, Angel - 15, Dungeon - 16, Bossrush - 17, Isaacs - 18, Barren - 19, Chest - 20, Dice - 21, BMarket - 22).
* cursefilter = bitmask for curses to be removed (Darkness = 1, Labyrinth = 2, Lost = 4, Unknown = 8, Cursed = 16)
* getcurse = bitmask for curses to be forced (Same id's as curse filter)
* achievements = list of achievement ids that are required to be able to play the challenge
* altpath = alternative floor for light/dark path (isaac/satan)
* canshoot = determines if player can shoot (true | default)
* redhp = add red hp
* maxhp = add hp container
* soulhp = add soul hp
* blackhp = add black hp
* coins = add coins
* maxdamage = maximal damage or more (clamps at min 100)
* adddamage = + damage up
* minfirerate = minimal fire rate or more
* minshotspeed = minimal shot speed or less
* bigrange = big range
* difficulty = game difficulty (0 - normal | default, 1 - hard)
* megasatan = last boss is megasatan
-->
<challenges version="1">
    <challenge name="Sick Day" id="1" endstage="8" roomfilter="4,21" startingitems="149," playertype="4" />
</challenges>