[th/node-name-cleanup] cleanups around node name

[thom311]

• ktoolbox: bump to latest version
• task: simplify selection of pod template and rename pod files
• task: add "Task.render_pod_file()" helper
• task: avoid redundant Task.out_file_yaml state
• tftbase: add str_sanitize() function for sanitizing string
• task: sanitize unusual characters in the pod name
• task: make "node_name_sanitized" a property
• testConfig: validate ConfNodeBase.name to be a valid DNS name
• manifests: quote the {node,pod}_name Jinja variables in YAML

[m-naught]

The regex parsing doesn't work for my node name

[FATAL] failed (exit 1); err='The Pod "sriov-pod-qs_ognrd_
ocars2_olab-server-5201" is invalid: 
\n* metadata.name: Invalid value: "sriov-pod-qs_ognrd_ocars2_olab-server-5201": a lowercase RFC 1123 subdomain must consis
t of lower case alphanumeric characters, \'-\' or \'.\', and must start and
 end with an alphanumeric character (e.g. \'example.com\', regex used for validation
 is \'[a-z0-9]([-a-z0-9]*[a-z0-9])?(\\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*\')\n* spec.containers[0].name: 
Invalid value: "sriov-pod-qs_ognrd_ocars2_olab-server-520
1": a lowercase RFC 1123 label must consist of lower case alphanumeric characters or
 \'-\', and must start and end with an alphanumeric character (e.g. \'my-na
me\',  or \'123-abc\', regex used for validation is \'[a-z0-9]([-a-z0-9]*[a-z0-9])?\')\n'

[wizhaoredhat]

LGTM