Wight's level drain seems to have no effect on PCs

[grannypron]

A PC was hit by a wight in combat and the message "so and so was diminshed" but their level in the view character screen stayed the same.

[grannypron]

Main problem here seems to be that there is no [CharDisplayStatus] hook on the IsDrained SA. So it LOOKS like they are not drained, but they actually are.

[grannypron]

The rest of this problem does go back to a common situation where the spells display their "Saving throw failed" text even when the saving throw succeeded.

Spawned #142 for this problem. More work will need to be done on testing the Drained effect to make sure that it can be healed properly by spells.

[grannypron]

Commit for [CharDisplayStatus] addition is 152cf8a