Changed the connection string of the python library. I used to have version...

Changed the connection string of the python library. I used to have version 2.7 and 3.7. Therefore, you had to specify a directory.

src/libdap-python.h

 #define PY_SSIZE_T_CLEAN
-#include <python3.7/Python.h>
+#include <Python.h>
 #include "dap_config.h"
 #include "dap_common.h"