add 'core:chat' event

res/scripts/stdcmd.lua

@@ -260,7 +260,7 @@ console.add_command(
     "chat text:str",
     "Send chat message",
     function (args, kwargs)
-        console.log("[you] "..args[1])
+        console.chat("[you] "..args[1])
     end
 )
 

res/scripts/stdlib.lua

@@ -225,6 +225,11 @@ function console.log(...)
     log_element:paste(text)
 end
 
+function console.chat(...)
+    console.log(...)
+    events.emit("core:chat", ...)
+end
+
 function gui.template(name, params)
     local text = file.read(file.find("layouts/templates/"..name..".xml"))
     for k,v in pairs(params) do