Add information about non-filtered connections to the filtering log

[ameshkov]

At the moment we're completely ignoring some connections:

• Connections that are blocked by the firewall rules;
• Connections that are not bypassed on the VPN level for some reason;

We should record them as a "Tunnel" event type.

[TPS]

Can they also be highlighted w/ another color(s) in the filtering log, & added to #1369 (or similar)?

[ameshkov]

@admitrevskiy one more thing is missing from the implementation.

We need to be able to construct blocking (and unblocking) rules for this kind of connections. It is possible to block or unblock a network connection with the rules that use the $network modifier.

[Alex-302]

IP is displayed instead of host name(it seems in VPN mode)

[ameshkov]

IP is displayed instead of host name(it seems in VPN mode)

Yes, that's expected -- no filtering, no parsing connection details.

[zebrum]

seems to be not working.

[ameshkov]

@zebrum testing instructions:

1. Disable ad blocking for Chrome
2. Open some web page
3. Check the filtering log

[zebrum]

@ameshkov yep, that's exactly what I've done.

[vozersky]

Connections that are not bypassed on the VPN are shown in the log, but connections that are blocked by the firewall rules are not

[ameshkov]

Resolved in adguard-android/pull-requests/573