Adapt to some skill and tool changes the system made, fixing #60

[kaelad02]

Way back in dnd5e 2.2.0, they moved tool checks from the item to the actor. When doing so, the dnd5e.preRollToolCheck hook changed its arguments. Now we can get the toolId but Midi hasn't defined any new flags that use that so I'm not going to add it here. But it does now pass the ability used in config.data.defaultAbility so I don't need to look it up on the actor. It also honors the ability they may have passed in as an argument to the rollToolCheck function.

While here, I noticed skills use the same config.data.defaultAbility which also honors the ability that is passed into rollSkill. While an edge case, it could come up more often now that the enrichers exist to prompt for skill checks where you can specify the ability as well.