Add hopLimit to most send functions in python/meshtastic /mesh_interface.py

[mikecarper]

Right now only sendData, sendTraceRoute, and _sendPacket have hopLimit.
sendText, sendAlert, sendPosition, and sendWaypoint should include it as well.

https://github.com/meshtastic/python/blob/master/meshtastic/mesh_interface.py

From meshtastic/firmware#6301

[rc14193]

Linking this draft PR that takes care of sendText and sendPosition. Asking them to add sendWaypoint and sendAlert