yamlns-0.11.0 (2022-11-06)

Detailed changes:

• New pytest assert assert_ns_contains: Assert for a subset of a ns
• New unittest assertion assertNsContains: Assert for a subset of a ns
• Optimization: Using CSafeLoader/Dumper instead SafeLoader/Dumper
• json2yaml: new script to have a yaml based pretty printed view on json data
• Renamed script nstemplate.py as nstemplate (removed .py)
• pytest utils documented