GridStatusSwiftmendable

GridStatusSwiftmendable is designed to be a very lightweight and efficient addon that provides a Swiftmend feature to Grid, this status will be shown when the unit has a Swiftmendable HoT (including the ones you didn't cast), you have Swiftmend out of CD, and the unit has a health deficit.

This isn't my original idea, GridStatusSwiftmendable is based on an addon called GridStatusSwiftmend, but, since it doesn't work now and it hadn't been updated in a while, I thought I'd upload this one. GridStatusSwiftmendable's mechanic has been written from 0, but I've looked into other grid modules to see how to create one.