TKVM Epic Fight Additions

• Split weapon weight/parry effectiveness config to its own json.

• Added config toggle for exhaustion overlay (black vignette)

• Added stamina bar smoothing

• Revamped block mechanic

    blockBaseImpact = 1.0 Base cost of any hit
    blockNegationCap = 0.8 Maxmimum that any weapon can mitigate drain
    maxDamageForFullDrain = 40.0 divisor for the amount of stamina drain.
    maxBlockDrainPercentage = 0.8 How much stamina that any single hit can maximially drain