Before you think "ha now I can compile OpenKore using these bat files":
DON'T DO IT!

You are not supposed to compile OpenKore unless you have a very good
reason to do so! Every day, people keep coming to the forum asking "how
do I compile?", "why does compilation fail?", etc. You are NOT supposed
to compile! Save yourself all the hassle and read this:
https://openkore.com/wiki/How_to_run_OpenKore