feat: support livesync in remote machine

[edusperoni]

adds support to wsl via export LIVESYNC_ADDR=hostIpAddr

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What is the current behavior?

livesync always tries to connect to localhost

What is the new behavior?

you can provide the LIVESYNC_ADDR to override the default ip address for livesync

Implements #5450.

[rigor789]

LGTM, I would rename the env var to NATIVESCRIPT_LIVESYNC_ADDRESS to be explicit (I've done a similar env variable on a separate PR for config handling)