Expand monidlistener

[RheingoldRiver]

Expand monidlistener to listen to a set of predetermined strings (like automod) and if it sees one of those, paste the string into ^id3 and say {monster.name_en} is not tradeable because it sells for {monster.sell_mp} monster points"

• Actually predetermined strings would prob be a list of regex patterns

We'll need to have like ^untradeable add, list, rm to update the list

[ethannp]

i will do this eventually maybe