resolve a single sequence item

[timjen3]

Cases where it would be useful to resolve 1 sequence item:

• getting text for an entity's health. ex: "almost dead" or "fine"
• getting text for entity's exact hp. ex: "15 / 20"
• getting text for how many potions entity has. ex: "5".

[timjen3]

Should not have same signature as the existing internal method since that is designed for items that are part of a sequence. This new method should be really bare bones. Something like this:

string GetResult(SequenceItem item, Role role);