When you area reclaim, it normally just grabs everything, no matter if you actually need energy or metal.
With this widget, when you area reclaim centered on a specific type of feature (energy or metal) it will only reclaim features of the type specified, starting with the ones closest to the unit.
In short: you won't reclaim metal when you need energy, and won't reclaim energy when you need metal.
You do this by basing an area reclaim around a feature with the type of resource you want to reclaim from.
This widget handles the rest.
v1.0
Basic functionality.
todo:
- optimized reclaim sorting (don't zigzag)
 - resource prioritizing (if you're E stalling but have max M, go for E, and vice versa...)
 - for these, probably need to update after every reclaim
 - visual thingy?
 - hotkey to disable or enable
 - maybe a custom queue to look nicer
 
note: the center feature is decided by the base of the feature, even though you can reclaim from the top of a feature when your camera is at an angle
so use SelectionCircle or something and put your cursor inside the feature's base
