Change the base stat provided by a warcry medium cluster jewel

As of right now, there are still a number of various builds that use warcries. You're trying really, REALLY hard to make them useless for anything other than exerted attacks, but we're way too clever.

Because of the fact that not only melee builds use warcries, the medium cluster jewel base stat of "Exerted Attacks deal 20% increased Damage" is absolutely donkey.

This needs to be changed to something that would want me to invest into crafting a warcry jewel instead of scouring the trade site for a megallomaniac with warcry notables that I want. There are a ton of options that would benefit all kinds of builds, not just melee exert ones, e.g.:

- warcry cooldown recovery speed
- warcry buff effect

As an example, the above two are both solid and generic enough to benefit all kinds of builds that want to use warcries and associated medium cluster jewels.