Option to "Show only custom power schema"

[V-ed]

First of all, thanks a lot for this useful utility, I just recently switched pc that had model-specific software to switch to custom power plans automatically (what you app is doing, in other words!) and my new computer does not have it, so your utility will come very handy to me!

Now, here's a feature request that I believe would be relatively easy to implement (you already have an option to Show only default power schema, simply applying this code and inversing the list shown might do the trick?) and that would also be useful for customization purposes.

I thought about looking into your code and trying to do it myself, but I am quite busy right now as my session at school is ending - in the next few days, if I dive into it and that you aren't taking this feature request, I'll try to add it myself and create a pull request.

Until then, what do you think about this feature? (I know it would come useful to me!)

[petrroll]

Hi, thanks for all your suggestions. Due to various reasons (got a desktop PC I do most work at, school, work), I've stopped working on new features for PowerSwitcher. Should a critical issue arise I'll try to fix it but don't expect anything new.

I'll happily accept PR tho :).

[petrroll]

More info in #23