Add core_spec functions for job suspend,resume,end

The function arguments are unchanged, this splits the set into
four functions.
Relocated core_spec suspend/resume calls

Move core_spec_g_suspend() and core_spec_g_resume() from slurmd
to slurmstepd daemon per Cray request.
core_spec plugin changes

change the core_spec_g_set and clear functions to take container
ID as an argument
core_spec refactoring

Move calls to core_spec_g_set/clear from slurmd to slurmstepd.
Pass count of specialized cores from slurmd to slurmstepd.
core_spec plugin, turn off debugging