Added generic wrapper function node_helpers.pillow to fix PIL issues #4472 and #2445 (#3422)

* Update node_helpers.py to use generic pillow wrapper to resolve multiple meta-data related issues.

replaced open_image function with a generic pillow function that takes Pil functions as a dependency injection and applies the ImageFile.LOAD_TRUNCATED_IMAGES try except fix to them. 

This provides an extensible function to handle related errors that can wrap offending functions when discovered without the need to repeat code.

* Update a few Pil functions to use node_helpers.pillow wrapper

Update a Pil function calls in a few locations to use the generic node_helpers.pillow wrapper that takes the function as a dependency injection and uses the try except method with ImageFIle.LOAD_TRUNCATED_IMAGES solution

* Corrected comment in issue #s fixed.

* Update node_helpers.py to remove import of Image from PIL

import of Image is no longer required as functions are Injected

node_helpers.py

@@ -1,4 +1,4 @@
-from PIL import Image, ImageFile, UnidentifiedImageError
+from PIL import ImageFile, UnidentifiedImageError
 
 def conditioning_set_values(conditioning, values={}):
     c = []
@@ -10,16 +10,15 @@ def conditioning_set_values(conditioning, values={}):
 
     return c
 
-def open_image(path):
+def pillow(fn, arg):
     prev_value = None
-
     try:
-        img = Image.open(path)
-    except (UnidentifiedImageError, ValueError): #PIL issues #4472 and #2445
+        x = fn(arg)
+    except (OSError, UnidentifiedImageError, ValueError): #PIL issues #4472 and #2445, also fixes ComfyUI issue #3416
         prev_value = ImageFile.LOAD_TRUNCATED_IMAGES
         ImageFile.LOAD_TRUNCATED_IMAGES = True
-        img = Image.open(path)
+        x = fn(arg)
     finally:
         if prev_value is not None:
             ImageFile.LOAD_TRUNCATED_IMAGES = prev_value
-        return img
+        return x