Adapt to modified dll loading procedure in Python 3.8 on Windows

Wrap/python/__init__.py.in

@@ -7,6 +7,14 @@ sys.path.append(os.path.abspath(
 # this line needed to fix python3 import problem
 sys.path.append(os.path.abspath(os.path.dirname(__file__)))
 
+# this is needed to adapt to the changed dll import in Python 3.8 and Windows
+# https://docs.python.org/3/whatsnew/3.8.html#ctypes
+if sys.version_info >= (3, 8, 0) and sys.platform == 'win32':
+    if "PATH" in os.environ:
+        for p in os.environ['PATH'].split(';'):
+            if p:
+                os.add_dll_directory(p)
+
 from libBornAgainFit import *
 from libBornAgainCore import *