[Feature] Have an option to average out unrolled relics and include them in optimizer search

[fribbels]

Motivation

Currently: Unrolled relics (+0, +3 etc) can have their main stats maxed, but their substats are included as-is, which means they are unlikely to be selected in the optimizer search even if they might be BiS if rolled.

Objective

Enable a optimizer toggle to allow 'predicting relic rolls' which really just means averaging out the remaining rolls between the relic's existing substats. Or maybe some other customizable way? Like have the relic preferentially roll into crit/etc as an option