Update `t2 list` output as more connections are found

[johnnyman727]

We currently print out each connection the CLI finds when you run t2 list

➜  t2-cli t2 list
INFO Searching for nearby Tessels...
    Tessel-02A3DEABD7E4 USB
    Tessel-02A3DEABD7E4 LAN

I think it would be better to update the line of the found Tessel when it finds another connection as in

➜  t2-cli t2 list
INFO Searching for nearby Tessels...
    Tessel-02A3DEABD7E4 USB

And then one second later as it finds the LAN connection:

➜  t2-cli t2 list
INFO Searching for nearby Tessels...
    Tessel-02A3DEABD7E4 USB/LAN

[johnnyman727]

@LinusU what's a good library for overwriting stdout?

[LinusU]

log-update is an awesome library for that!

[johnnyman727]

Thanks Package-Master @LinusU!

[LinusU]

Hehe, no problem ;)

[Student007]

because @Frijol is right about double discussion so I link the quick fix discussion #381 for inspiration a new contributor would love to read 😄

[alferpal]

Does this feature still need developing? I would like to take it