*Adds all the necessary procs for TGUI functionality as backend
*Creates EntityNarrate.tsx
*Extends entity_narrate datum with helper vars for TGUI
*TGUI window now allows:
* * Multi Selection
* * Single Selection
* * It shows details if single
* * It shows how many if multi
* * Allows picking between subtle/loud
* * Allows picking between talk/emote
* * Allows sending messages every 0.5 seconds
* * Uses new textbox feature to make editing and tracking narration easy!
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