Building with ROOT6 on SDCC nodes

[plexoos]

Depending on your environment the following may be enough to compile the entire code base locally:

# Setup the environment with ROOT6 and Vc
module use /cvmfs/star.sdcc.bnl.gov/star-spack/spack/share/spack/modules/linux-rhel7-x86_64
module load star-env-root-6.16.00

git clone https://github.com/star-bnl/star-sw.git
cd star-sw
env STAR=$PWD cons +StarVMC/Geometry
env STAR=$PWD cons

cc @perevbnlgov @klendathu2k @genevb @kehw @nigmatkulov @starsdong