Intel ARC support with IPEX

sdxl_train_network.py

@@ -1,5 +1,12 @@
 import argparse
 import torch
+try:
+    import intel_extension_for_pytorch as ipex
+    if torch.xpu.is_available():
+        from library.ipex import ipex_init
+        ipex_init()
+except Exception:
+    pass
 from library import sdxl_model_util, sdxl_train_util, train_util
 import train_network