Py3 component tests fixes

##### ISSUE TYPE

* Improvement Request

##### COMPONENT NAME

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Component tests
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##### CLOUDSTACK VERSION

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4.16+
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##### CONFIGURATION

NA

##### OS / ENVIRONMENT

NA

##### SUMMARY

the component tests have been ported to python3 but a lot of them are non functional. In #5442 a start was made but this is going to require more work than should be stuffed in a single PR. Below is a list of the component test that need looking at. Some can be assessed and disgarded. Others should be fixed.

- [ ] test_add_remove_network.py
- [ ] test_affinity_groups_projects.py
- [ ] test_affinity_groups.py
- [ ] test_base_image_updation.py
- [ ] test_blocker_bugs.py
- [ ] test_browse_templates.py
- [ ] test_browse_volumes.py
- [ ] test_bugs.py
- [ ] test_configdrive.py
- [ ] test_dedicate_guest_vlan_ranges.py
- [ ] test_dedicate_public_ip_range.py
- [ ] test_dhcp_dns_offload.py
- [ ] test_egress_fw_rules.py
- [ ] test_escalation_listTemplateDomainAdmin.py
- [ ] test_escalations_hosts.py
- [ ] test_escalations_ipaddresses.py
- [ ] test_escalations_networks.py
- [ ] test_escalations_volumes.py
- [ ] test_escalations_vpncustomergateways.py
- [ ] test_escalation_templates.py
- [ ] test_explicit_dedication.py
- [ ] test_ha_pool_maintenance.py
- [ ] test_high_availability.py
- [ ] test_implicit_planner.py
- [ ] test_ip_resource_count_for_vpc.py
- [ ] test_multiple_public_interfaces.py
- [ ] test_organization_states.py
- [ ] test_persistent_networks.py
- [ ] test_portable_ip.py
- [ ] test_ps_resource_limits_volume.py
- [ ] test_redundant_router_cleanups.py
- [ ] test_redundant_router_deployment_planning.py
- [ ] test_redundant_router_network_rules.py
- [ ] test_redundant_router.py
- [ ] test_reset_ssh_keypair.py
- [ ] test_rootvolume_resize.py
- [ ] test_shared_networks.py
- [ ] test_snapshots.py
- [ ] test_ss_limits.py
- [ ] test_ss_max_limits.py
- [ ] test_ss_project_limits.py
- [ ] test_stopped_vm.py
- [ ] test_storage_motion.py
- [ ] test_tags.py
- [ ] test_volumes.py
- [ ] test_vpc_host_maintenance.py
- [ ] test_vpc_network_internal_lbrules.py
- [ ] test_vpc_network_pfrules.py
- [ ] test_vpc_network.py
- [ ] test_vpc_network_staticnatrule.py
- [ ] test_vpc_offerings.py
- [ ] test_vpc_routers.py
- [ ] test_vpc_vm_life_cycle.py
- [ ] test_vpc_vms_deployment.py
- [ ] test_vpn_service.py
- [ ] test_vpn_users.py
- [ ] test_vr_metadata.py
- [ ] test_zone_level_local_storage_setting.py

##### STEPS TO REPRODUCE

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##### EXPECTED RESULTS

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##### ACTUAL RESULTS

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Comienza con uno de los archivos de pruebas de componentes indicados, como test_add_remove_network.py, e inspecciona cómo se comporta actualmente su adaptación a Python 3. Ejecuta esa prueba en el entorno de pruebas de componentes de CloudStack, determina si necesita corregirse o si puede descartarse, y actualiza la lista de comprobación cuando su comportamiento esté resuelto.

Escrito por el modelo de indexación a partir del texto del issue.