Added Adversary Sheet

[stuttste]

I needed a more fleshed out adversary sheet, so went ahead and implemented it. May tackle delve/landmark if I feel the need.

[hitcherland]

Oh I forgot to mention, we need to add some extra translations, the en.json file in the adverary directory should look something like

{
    "adversary": {
        "label-single": "Adversary",
        "label-multiple": "Adversaries",
        "name": "Name",
        "resistanceMax": "Maximum Resistance",
        "difficulty": "difficulty",
        "descriptors": "Descriptors",
        "motivation": "Motivation",
        "special": "Special",
        "notes": "Notes",
        "inactive-items": "Inactive Items",
        "inactive-items-description": "Here you'll find items that were directly added to the adversary sheet, but were marked inactive (which hides them from the normal layout)."
    }
}

[stuttste]

No problem! Glad I could help. I'll take a look and try to add in the suggested changes (a bit new to using some of the more in-depth features of github like pull requests) and get them back to ya.

I'm not super familiar with javascript/web dev, so tried not to meddle with things I wasn't sure of. More of a C# man. lol

[stuttste]

Ok, I think I got everything. Threw in Spanish translation as well because why not.

Double-check the en.json/es.json files. I added a resistance and protection entry so it would find those nicely, but not sure if it will cause any conflicts with other things in the project.

[hitcherland]

Should be available now as v0.4.6!