add missing executbale ISAR_post_rend

# print C-code directory

echo "C-code directory set to ${WORKDIR}"

WORKDIR_EXE=${WORKDIR//" "/"\ "}

EXECUTABLES="${WORKDIR_EXE}/IVAS_cod ${WORKDIR_EXE}/IVAS_dec ${WORKDIR_EXE}/IVAS_rend"

EXECUTABLES="${WORKDIR_EXE}/IVAS_cod ${WORKDIR_EXE}/IVAS_dec ${WORKDIR_EXE}/IVAS_rend ${WORKDIR_EXE}/ISAR_post_rend"

# build

if [ $compile -ne 0 ]; then