Add showcased Mercenaries of Trarthus uniques (#8619)

* FEAT(items): Add showcased uniques to New.lua

* FEAT(mods): add handling for new mods on Scornflux

* FEAT(mods): add handling for "Take X Fire Damage when you use a Skill"

* FEAT(mods): add handling for Damage penetrates "Fire Resistance equal to
your overcapped Fire Resistance"

* FEAT(mods): add handling for "Warcries have an additional Life Cost equal to 15% of your Maximum Life"

* FEAT(mods): add handling for "Warcry Skills have X increased Area of
Effect"

* FEAT(mods): add handling for `Gain no armour from equipped body armour`

* FEAT(mods): port generalized "doubled" mod handling from POB2

https://github.com/PathOfBuildingCommunity/PathOfBuilding-PoE2/pull/1095

* Update spelling and ModCache

---------

Co-authored-by: Wires77 <Wires77@users.noreply.github.com>

docs/modSyntax.md

@@ -36,6 +36,8 @@ Often a mod will only apply under certain conditions, apply multiple times based
     * var: mod to multiply by
     * limit: The maximum number the mod can go up to
     * limitTotal: boolean that changes the behavior of limit to apply after multiplication.  Defaults to false.
+	* globalLimit: The maximum global number the mod can go up to, even with multiple sources. Useful for mods that say "up to a maximum of ..."
+    * globalLimitKey: string identifier for the global limit. Mods with identical keys cannot go over the globalLimit.
 * MultiplierThreshold: Similar to a condition that only applies when the variable is above a specified threshold
     * var: name of the mod
     * threshold: number to reach before the mod applies