Restructured the utility methods from rfc4122 definition in the `pecoff.headers` library module to better allow extracting its individual components.
Restructured the utility methods from rfc4122 definition in the `pecoff.headers` library module to better allow extracting its individual components.

arizvisa/syringe,arizvisa/syringe,arizvisa/syringe,arizvisa/syringe,arizvisa/syringe