SNClient

Changes:

- do not use empty-state if warn/crit conditions contain check on 'count'
- check_memory: distinguish between committed and swap memory
- check_memory: change default type on linux to physical,swap
- fix evaluating nested filter conditions
- fix check_drivesize missing performance data when using free_bytes threshold (#136)
- fix check_http/check_tcp/check_dns help (#135)
- fix using condition alias on nested filters
- fix check_tasksched memory leak (#122)
- update windows exporter to 0.28.1

Changes:

- fix check_os_version windows build version (#134)
- update node exporter to 1.8.2
- chdir windows service into to shared-path folder
- fix escaping arguments in windows ps1 scripts
- fill unused $ARGx$ macros with empty space (#110)
- fix if/else expression evaluation (#126)

Changes:

- update node exporter to 1.8.1
- migrate v3 to github.com/shirou/gopsutil/v4
- add device filter for network counter
- adjust default metric counter interval to 5s and buffer length to 15m
- lower agent memory and cpu footprint