Add Cloudron packaging for Maubot

maubot-src/requirements.txt

@@ -0,0 +1,16 @@
+mautrix>=0.21.0b5,<0.22
+aiohttp>=3,<4
+yarl>=1,<2
+asyncpg>=0.20,<1
+aiosqlite>=0.16,<1
+commonmark>=0.9,<1
+ruamel.yaml>=0.15.35,<0.19
+attrs>=18.1.0
+bcrypt>=3,<5
+packaging>=10
+
+click>=7,<9
+colorama>=0.4,<0.5
+questionary>=1,<3
+jinja2>=2,<4
+setuptools