When the client (browser and picard) are on the same local network a direct connection should be used (ie only local ip adresses).
Some clients got confused when picard ran in a different subnet range (ie docker internal ip) than the clinet and then tried to use 
the public ip address and that might or might not work. 

This fix moves picard to the same netspace as the host and therefore will expose the hosts ip address to the client (in the ice setup) and this seasm to be more stable.    

Added new features from my thesis project

See merge request !2

Update README.md

See merge request !1

Added example of a external signalstrength sensor and open port for quick prototyping sensors

TODO:
- zmq between python golanbg does not work, maybve due to  json marsal?

Restructured for easier dev envinroment setup ?

- carsss -- should be able to specify listen addresa and port
- picard -- should be able to specifiy listen adress and port for video stream