Add Cloudron packaging for Maubot

maubot-src/examples/config/base-config.yaml

@@ -0,0 +1,5 @@
+# Who is allowed to use the bot?
+whitelist:
+  - "@user:example.com"
+# The prefix for the main command without the !
+command_prefix: hello-world

maubot-src/examples/config/configurablebot.py

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+from typing import Type
+from mautrix.util.config import BaseProxyConfig, ConfigUpdateHelper
+from maubot import Plugin, MessageEvent
+from maubot.handlers import command
+
+
+class Config(BaseProxyConfig):
+    def do_update(self, helper: ConfigUpdateHelper) -> None:
+        helper.copy("whitelist")
+        helper.copy("command_prefix")
+
+
+class ConfigurableBot(Plugin):
+    async def start(self) -> None:
+        self.config.load_and_update()
+
+    def get_command_name(self) -> str:
+        return self.config["command_prefix"]
+
+    @command.new(name=get_command_name)
+    async def hmm(self, evt: MessageEvent) -> None:
+        if evt.sender in self.config["whitelist"]:
+            await evt.reply("You're whitelisted 🎉")
+
+    @classmethod
+    def get_config_class(cls) -> Type[BaseProxyConfig]:
+        return Config

maubot-src/examples/config/maubot.yaml

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+maubot: 0.1.0
+id: xyz.maubot.configurablebot
+version: 2.0.0
+license: MIT
+modules:
+- configurablebot
+main_class: ConfigurableBot
+database: false
+config: true
+
+# Instruct the build tool to include the base config.
+extra_files:
+- base-config.yaml