add ISAR enc header file

#!/usr/bin/env bash

if [ "$#" -ne 1 ]; then

    echo "Usage: $0 <CUT_ENC_BIN>"

    exit -1

fi

CUT_ENC_BIN=$1

DIFF_BIN="diff"

TESTV_PATH="."

REF_PATH="./testv"

CUT_PATH="./TMP_ENC_ISAR"

LOG_FILE=Readme_IVAS_ISAR_enc_log.txt

rm -rf tmp

rm -rf $CUT_PATH

mkdir -p $CUT_PATH

mkdir -p $CUT_PATH/split_rendering/cut