[RFC] Telemetry enhancements and Windows support

[Dmitry Kozlyuk]

2022-04-02 01:59 (UTC+0300), Dmitry Kozlyuk:
> Telemetry today (talking only about v2):
> 
> * Telemetry library starts a thread to listen for connections.
>   It is affinitized to the main lcore.

Should be: "to the control thread CPU set".

>   A thread is spawned to serve each client connection.

Note: the number of active connections is limited to MAX_CONNECTIONS = 10.
No change is proposed here, although the new kvargs syntax
allows to add telemetry tunables easily.