Add moonraker-telegram-bot by nlef

[mkuf]

From #45

Adds

• profile moonraker-telegram-bot
• service moonraker-telegram-bot
• config/telegram.conf
• Docs regarding moonraker-telegram-bot

Changes

• Updates wording on KlipperScreen Profile

[mkuf]

Bot is logging missing dependencies

Traceback (most recent call last):
  File "/opt/moonraker-telegram-bot/bot/main.py", line 41, in <module>
    from websocket_helper import WebSocketHelper
  File "/opt/moonraker-telegram-bot/bot/websocket_helper.py", line 11, in <module>
    from notifications import Notifier
  File "/opt/moonraker-telegram-bot/bot/notifications.py", line 11, in <module>
    from camera import Camera
  File "/opt/moonraker-telegram-bot/bot/camera.py", line 16, in <module>
    import cv2  # type: ignore
ModuleNotFoundError: No module named 'cv2'

[mkuf]

Dependencies have been fixed in the upstream Image

[mkuf]

Upstream image is only available for linux/amd64.
This will be merged as soon as the Image is also available for arm. nlef/moonraker-telegram-bot#231