Fix Network Viewer - Githubissues

This PR is the first step to fix issue reported by user (https://community.netdata.cloud/t/ebpf-network-connection-chart-is-not-what-im-expecting/3500/2) and also adjusts code for our future Network Viewer.

More details after tests...

Get binaries from this link according your libc version and save to a directory, for example, ../artifacts;

Extract files with next commands:

$ for i in `ls *.zip`; do unzip $i; rm .gitkeep ; rm $i; done
$ for i in `ls *.xz`; do tar -xf $i; rm $i* ; done

Run the following command:

# for i in `seq 0 2`; do ./kernel/legacy_test --pid $i --content --iteration 2 --socket --netdata-path ../artifacts/ --log-path file_$i.txt ; done

This PR was tested on:

Linux Distribution	kernel version	real parent	parent	all
Slackware Current	5.19.17	slackware_5_19_0.txt	slackware_5_19_1.txt	slackware_5_19_2.txt
Arch Linux	6.0.8-arch1-1	arch_6_0_0.txt	arch_6_0_1.txt	arch_6_0_2.txt
Ubuntu 22.04	5.15.0-33-generic	ubuntu_5_15_0.txt	ubuntu_5_15_1.txt	ubuntu_5_15_2.txt
Alma 9	5.14.0-70.30.1.el9_0.x86_64	alma_5_14_0.txt	alma_5_14_1.txt	alma_5_14_2.txt
Debian 11	5.10.0-19-amd64	debian_5_10_0.txt	debian_5_10_1.txt	debian_5_10_2.txt
Oracle 8.6	5.4.17-2136.312.3.4.el8uek.x86_64	oracle_5_4_0.txt	oracle_5_4_1.txt	oracle_5_4_2.txt
Slackware Current	5.4.210	slackware_5_4_0.txt	slackware_5_4_1.txt	slackware_5_4_2.txt
Alma 8.6	4.18.0-425.3.1.el8.x86_64	alma_4_18_0.txt	alma_4_18_1.txt	alma_4_18_2.txt
Ubuntu 18.04	4.15.0-180	ubuntu_4_15_0.txt	ubuntu_4_15_1.txt	ubuntu_4_15_2.txt
Slackware Current	4.14.290	slackware_4_14_0.txt	slackware_4_14_1.txt	slackware_4_14_2.txt
CentOS 7.9	3.10.0-1160.71.1.el7.x86_64.	centos_3_10_0.txt	centos_3_10_1.txt	centos_3_10_2.txt

netdata / kernel-collector