Support more layouts of Python on Windows

Author: timfel

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/cext/copying/PEFile.java

@@ -81,6 +81,15 @@ private String getDelvewheelPython() {
         if (!python.exists()) {
             python = delvewheel.resolveSibling("python.cmd");
         }
+        if (!python.exists()) {
+            python = delvewheel.getParent().resolveSibling("python.exe");
+        }
+        if (!python.exists()) {
+            python = delvewheel.getParent().resolveSibling("python.bat");
+        }
+        if (!python.exists()) {
+            python = delvewheel.getParent().resolveSibling("python.cmd");
+        }
         return python.toString();
     }