Added utility_scripts under the titan_blif benchmarks directory. It c…

…ontains the q2_flow.tcl script and documentation (MS word format) on how to use the script to pass designs with novel hard blocks in them through the Titan flow. The script and documentation were created by Srivatsan, and enable new hard blocks that Quartus does not understand to pass through Quartus synthesis and on to VPR for evaluation.