More storytellers stuff

[wraith-54321]

About The Pull Request

Adds 3 new storytellers
The Mystic: "The Mystic gives events from beyond the vale, some of which may even be magic in nature."
It can rarely trigger wizard events.

The Operative: "The Operative tries to create more direct confrontation with human threats."
This one has a boosted roleset rate so expect extra antags.

The Clown: "The clown creates only(citation needed) harmless events, its all fun and games with this one!"
point_gains_multipliers = list( EVENT_TRACK_MUNDANE = 2, EVENT_TRACK_MODERATE = 1.8, EVENT_TRACK_MAJOR = 0.2, EVENT_TRACK_ROLESET = 0.8, EVENT_TRACK_OBJECTIVES = 1 )

Swaps some event tracks around and adds some new tags.
Reduces the weight of clown ops to 1 as they are meant to be rare.
Allows midround nukies to actually spawn.(besides one really rare case on jester)
Reduces the weight of revs from 4 to 3.
Reduces the weight of midround malf from 4 to 2.
Increases the weight of wizard from 2 to 3.
The storyteller vote selects a random of 4 to be voted for.(Guide and Ghost are always votable and dont count for that count)

Why It's Good For The Game

Fixes, content, complaints, random votes are good for map votes so lets try them here.

Changelog

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add: Added 3 new Storytellers
/:cl: