add missing run_mimc.sh script

run_mimc.sh

@@ -0,0 +1,5 @@
+#!/bin/bash -x
+python scripts/preprocess.py proofs/mimc.psm > /tmp/mimc.psm || exit $?
+python scripts/compile.py --supervisor /tmp/mimc.psm --output mimc.zcd || exit $?
+cargo run --release --bin mimc
+