Adds lots of mission-specific and chat dialogue for Liam (CleverRaven…

…#73108)

* Create liam_chat.json

* Update liam_main_dialogue.json

remove chat topics to a new file

* Update liam_main_dialogue.json

I think I missed this bit of dialogue, which I doubt anyone will ever spot

* Update liam_chat.json

add dialogue related to back bay mission

* Update liam_main_dialogue.json

lint

* Update liam_chat.json

Add the talk topic headers

* Update liam_main_dialogue.json

added missing response

* Update liam_chat.json

Got some responses

* Update liam_chat.json

Add some lines based on discord requests

* Update liam_chat.json

cleanup

* Update liam_chat.json

* Update liam_chat.json

* Update liam_chat.json

adjust location of dialogue options

* Update liam_main_dialogue.json

add job opinion option to main dialogue menu as well.

This may change if we split NPC orders from chat.

* Update liam_chat.json

* start adding old guard quest responses

* Update liam_chat.json

* Update liam_chat.json

more random chat lines. Could be done as a snippet

* finish old guard quest reactions

be fun to have follow up dialogue about the radio tower.

* Lint

* Lint

* Update liam_chat.json

adjust dialogue so that it makes sense whether or not you're staying in liam's cabin

* typo fixes

* u_has_assigned_mission --> u_has_mission

* proofreading fixes