Use config files for bots

examples/echo/bot.conf

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+[basic]
+name = EchoBot
+
+[rooms]
+test

examples/echo/echobot.py

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+import asyncio
+
+import yaboli
+
+
+class EchoBot(yaboli.Bot):
+    HELP_GENERAL = "/me echoes back what you said"
+    HELP_SPECIFIC = [
+            "This bot only has one command:",
+            "!echo <text> – reply with exactly <text>",
+    ]
+
+    def __init__(self, config_file):
+        super().__init__(config_file)
+        self.register_botrulez()
+        self.register_general("echo", self.cmd_echo)
+
+    async def cmd_echo(self, room, message, args):
+        await message.reply(args.raw)
+
+async def main():
+    bot = EchoBot("bot.conf")
+    await bot.run()
+
+if __name__ == "__main__":
+    asyncio.run(main())