Script will copy source code, 3rd party IP and Xilinx project directory
into a scratch directory which it also creates. Script can be invoked
using the following option.
-c Copy Verilog source code and 3rd party IP to an already existing
syn/scratch/ directory. Perform no other functions.
-h Print this help info.
-l Symbolically link project files into the scratch dir instead of
copying them. Any changes to these file during building will thus be
propagated back into the repo.
-L Symbolically link project directory into the scratch instead of
copying it. This takes precedents over the '-l'.
