Upgrade to working telethon version

[Mic92]

The current version is no longer functional. The port might still have some bugs but at least I can read/write messages, download images and see the contact list.

[MaskRay]

(Thank you so much for porting. Will read..)

[Mic92]

Sorry. It's a bit of a nightmare to review due to size. But I couldn't think of a better way to port it.

[MaskRay]

Use single quotes

[MaskRay]

Some errors:

Traceback (most recent call last):
  File "/home/maskray/projects/telegramircd/./telegramircd.py", line 299, in init
    await web.channel_list()
  File "/home/maskray/projects/telegramircd/./telegramircd.py", line 277, in channel_list
    date = min(msg.date for msg in r.messages)
TypeError: '<' not supported between instances of 'datetime.datetime' and 'NoneType'
ERROR: resolve fwd_from TypeError("unhashable type: 'PeerChannel'")

Traceback (most recent call last):
  File "/home/maskray/.local/lib/python3.9/site-packages/telethon/client/updates.py", line 467, in _dispatch_update
    await callback(event)
  File "/home/maskray/projects/telegramircd/./telegramircd.py", line 2059, in on_telegram_update
    await getattr(TelegramUpdate, name)(self, update)
  File "/home/maskray/projects/telegramircd/./telegramircd.py", line 1685, in UpdateNewChannelMessage
    await server.on_telegram_update_message(update, update.message)
  File "/home/maskray/projects/telegramircd/./telegramircd.py", line 2065, in on_telegram_update_message
    sender, to = await self.resolve_from_to(msg)
  File "/home/maskray/projects/telegramircd/./telegramircd.py", line 2049, in resolve_from_to
    from_ = await server.ensure_special_user(msg.from_id, None)
  File "/home/maskray/projects/telegramircd/./telegramircd.py", line 1986, in ensure_special_user
    if user_id in self.user_id2special_user:
TypeError: unhashable type: 'PeerUser'
INFO: Sleeping for 24s (0:00:24) on GetParticipantsRequest flood wait

ERROR: resolve fwd_from TypeError("unhashable type: 'PeerChannel'")
ERROR: resolve fwd_from TypeError("unhashable type: 'PeerChannel'")
ERROR: resolve fwd_from TypeError("unhashable type: 'PeerChannel'")
ERROR: resolve fwd_from TypeError("unhashable type: 'PeerChannel'")