* Modify outbuffer
Each element of outbuffer keeps encoded packet ,number
of transmissions of givern packet and information if
given packet needs to be re-send.
* Add initial handling of timeouts
* Add tests for syn re-sends
* Add initial handling of acks
Add implemetaion of circular buffer based on reference implementation
Add way to test number of packet in flight
Add acking of initial syn packet
* Add initial impl of utp over udp
* Add more comments
* Add licenses and push declarations
* Add tests to nimble task
* Pr comments
Use better random generator
Raise assert error in case of buffer io exception
KonradStaniec