add tiny demo prog

python/example/read_profile.py

@@ -0,0 +1,19 @@
+#!/usr/bin/python
+
+import sys
+
+#import logging
+#logging.basicConfig(level = logging.DEBUG)
+
+from gi.repository import Vips
+
+#Vips.cache_set_trace(True)
+
+a = Vips.Image.new_from_file(sys.argv[1])
+
+profile = a.get_value("icc-profile-data")
+
+with open('x.icm', 'w') as f:
+    f.write(profile)
+
+