Fixed missing requirement for quests

[ai-kana]

The quest condition in "conditions.rst" was missing a required argument of Logic. Maybe I am wrong but I absolutely cannot get my NPC to function without that argument, I tested both it being: Quest Active; Logic Not_Equal, and Quest None; Logic Equal. Both of which functioned as intended.

[CLAassistant]

All committers have signed the CLA.

[MoltonMontro]

It may make more sense for this information to be listed at the top of the doc (where Condition_#_Type and Condition_#_Logic are documented) – as to avoid having to repeat it for a majority of the properties.

[ai-kana]

Very possibly but it made me spend a lot of time trying to figure out what was wrong with it and I think it would be all around easier to just list all the possible arguments for each condition.

[SDGNelson]

Currently every condition type requires Logic be specified

[ai-kana]

It never states that in the documentation, and that has caused me much confusion. There is nothing wrong with being verbose and putting it on every condition if it saves time and communicates what is needed well. I can amend my pull request to add such if you'd like.