Fix warcry duration and cooldown calcs

[Lothrik]

Fixes #3172.

Description of the problem being solved:

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At 100% reduced cooldown recovery rate, the cooldown for any given skill should be infinite. This is correct, and how things work in both PoB and in-game currently. If you go beyond 100% reduced cooldown recovery rate however, in PoB currently that results in massive negative cooldown values:

I fixed this by copying what PoE does: reduced cooldown recovery rate beyond 100% simply doesn't do anything further.

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All warcry-related "average uptime" calculations were using the wrong duration multiplier. Specifically they were using the duration modifier stat when the actual skill duration was expected. This leads to things like Enduring Cry providing half it's expected buff effect:

I fixed this by replacing:

local full_duration = calcLib.mod(activeSkill.skillModList, activeSkill.skillCfg, "Duration", "PrimaryDuration", "SkillAndDamagingAilmentDuration", activeSkill.skillData.mineDurationAppliesToSkill and "MineDuration" or nil)

with:

local full_duration = calcSkillDuration(activeSkill.skillModList, activeSkill.skillCfg, activeSkill.skillData, env, enemyDB)

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Link to a build that showcases this PR:

https://pastebin.com/aXkRvmM2

Before screenshot:

After screenshot: