Os-tests

- new case test_check_locale for bz2000878
- new case test_check_lsmem_segfault for bz1712768
- new case test_check_lspci_invalid_domain for bz1551091
- new case test_cloudinit_sshd_keypair for bz1527649 and bz1862933
- new case test_route_interfere for bz1977984
- new case test_check_systemd_analyze_verify_missing for bz2016305
- new case test_check_nitro_enclaves for bz2011739
- new case test_check_rpm_V_differences and test_check_rpm_V_missing for general rpm checking
- new case test_check_journalctl_conflict for general journal checking
- other minor fixes and enhancements

- new case test_check_cpuusage_exception and test_check_memusage_exception for bz1956248 to catch abnormal high cpu and memory usage
- new case test_check_dmesg_nmi for bz1917824
- new case test_check_sys_modules_parameters for 1619602
- new case test_check_journalctl_denied for bz1978507
- new case test_check_journalctl_not_found for bz1855252
- new case test_check_journalctl_cannot for general log checking
- new case test_check_journalctl_unexpected for general log checking
- added msg_90~msg_96 to know log baseline data
- other minor fixes and enhancements

- new case test_persistent_route for bz1971527
- new case test_check_systemd_analyze_verify_obsolete for bz1974108
- new case test_check_systemd_analyze_verify_deprecated_unsafe for bz1974184
- include ltp, blktests rpms within os-tests because not all system can access github
- enable auto_registration and disable manage_repos before checking
- enhanced check_log to accept multiple regex
- save code repo address in test debug log
- other minor fixes and enhancements