AssignSubCluster sets the `job.subcluster` property of the job based on its cluster and resources.

Job model @Description Information of a HPC job.

JobMeta model @Description Meta data information of a HPC job.

JobStatistics model @Description Specification for job metric statistics.

Resource model @Description A resource used by a job.

Tag model @Description Defines a tag using name and type.

A custom float type is used so that (Un)MarshalJSON and (Un)MarshalGQL can be overloaded and NaN/null can be used.