Add Epochs to Timeline

[jofwu]

Per forum recommendation... Add epoch/era names to the timeline.

(https://www.17thshard.com/forum/topic/92526-interactive-roshar-map-preview/#comment-1097090)

I imagine the simplest way to do this would be to just put a label at the starting point? There's not a LOT of these so I'm not sure how helpful it would be. But can't hurt. We probably want labels for:

• Post-Shattering ???
• Heraldic Epochs (starting with First Desolation)
• Era of Solitude (starting with Last Desolation)
• True Desolation (starting with summoning of Everstorm)

Could see an argument to put a label for the Heirocracy, but it only pertains to a portion of the world and we have a VERY poor idea of when it started. We only know it ended with the Sunmaker.

[jofwu]

Before closing this issue out...

If we decide to implement then let's make sure we notify Ysondra so she's aware the Spanish translation of these needs to happen.

[argent-codes]

I could see this work with special pins/dividers in the timeline(s).