Add silx to the binary.

Author: vasole

py2app_setup.py

@@ -75,6 +75,12 @@
     print("Using PyQt5")
     PACKAGES.append("PyQt5")
 
+try:
+    import silx
+    PACKAGES.append("silx")
+except ImportError:
+    print("silx not present")
+
 try:
     import mdp
     PACKAGES.append('mdp')