provide script for setting up ACTS environment (was ACTS-129)

Original author Christian Gumpert @cgumpert

Most software packages provide scripts to setup the required environment on UNIX system (mostly modifying PATH and LD_LIBRARY_PATH). A convention is to put this script into <install_dir>/bin/setup.sh

We should provide the same convenience functionality for ACTS.

Edited Mar 27, 2019 by Moritz Kiehn

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information