export function for formatting activity lines

src/core_modules/format_activity.py

@@ -2,6 +2,9 @@ import datetime
 from src import EventManager, ModuleManager, utils
 
 class Module(ModuleManager.BaseModule):
+    def on_load(self):
+        self.exports.add("format", self._event)
+
     def _color(self, nickname):
         return utils.irc.hash_colorize(nickname)