RAW Concentration

This mod changes the ways concentration gets broken to be as close to RAW as I can reasonably make it. There are a LOT of places where I had to go in and change one or two lines, especially to update the prone condition, so I'll just summarize the changes.

• []Some effects, like being grappled, no longer break concentration -- though damage applied during the grapple will still force a concentration save.

  []Some effects, like being knocked prone or confused, trigger a DC 10 concentration check instead of outright removing concentration. You'll have a 65% chance to pass at level 1 with 14 con, going higher as you level, with proficiency, item bonuses, or with advantage. You'd have 90% as a level 1 sorcerer with 16 con, a helmet, and the Safeguard Shield.

  []the sleet storm spell should properly recognize when you have advantage from sources like War Caster feat or the Gibus of the Worshipful Servant hat

  []The Mage Slayer feat gives disadvantage to maintan concentration on ALL damage dealt, rather than breaking concentration 100% of the time but only on melee attacks

  Let me know if you find something else I missed or if anything seems broken.