Add WholeNodeWanted ClassAd expression to request whole-node jobs
Add WholeNodeWanted ClassAd expression to request whole-node jobs

- Use TotalCpus of the worker
- Use 95% of TotalMemory

Implements the method from "Getting To Multicore: Resizing jobs in CMS" by Brian Bockelman. HTCondor Week 2016.
https://research.cs.wisc.edu/htcondor/HTCondorWeek2016/presentations/ThuBockelman_ResizableJobs.pdf

opensciencegrid/htcondor-ce,brianhlin/htcondor-ce,brianhlin/htcondor-ce,djw8605/htcondor-ce,brianhlin/htcondor-ce,matyasselmeci/htcondor-ce,djw8605/htcondor-ce,opensciencegrid/htcondor-ce,djw8605/htcondor-ce,opensciencegrid/htcondor-ce,matyasselmeci/htcondor-ce,matyasselmeci/htcondor-ce