Future non-custom item support (NM Raid drops)

[Xeio]

Opening an issue to track this and separate discussion from glyphs in #44.

I'd like to throw a mockup or two together for this at some point, since I'd rather move away from checkboxes for non-custom items.

I don't think any non-custom items were confirmed in the first NM NY kill, so this is still relatively low priority. If we get custom 10.6 glyphs working, then the MF:B dungeon drops probably aren't strictly necessary to implement (though I suppose they wouldn't be terrible to have).

[joakibj]

Agree that the checkboxes are not viable. Please check out #49 as well

[Xeio]

Sort of playing with a prototype for this functionality. Any thoughts? Not doing any sort of huge rewrite re-style at the moment. Just moving to be a bit more scalable as a select box.

Only moved the Head/Woodcutters talismans to the new format at the moment to play around with.

Can view it here: http://tswcalc.azurewebsites.net/

Still buggy, layout issues, some boxes don't disable on import of custom items (though import does work). I think I may have also broken literally every unit test but I can worry about that later as I'd rather not do all the work and then we decide this isn't a good way to do it. :P

[joakibj]

Looks good. Could maybe rename the Role term to Item or something. Then change "DPS" to "Custom DPS" or something like that. Definitely more scalable when it comes to more raid drops etc.