Move around and cleanup main directory

Author: jyapayne

build_command_line_linux.bash

@@ -8,7 +8,7 @@
     pass
 
 from utils import zip_files, join_files, log, get_temp_dir
-from pycns import save_icns
+from image_utils.pycns import save_icns
 from pepy.pe import PEFile
 
 import argparse

build_mac.bash

@@ -1,6 +1,6 @@
 import struct
-import image_utils
-import png
+import image_utils.image_utils as image_utils
+import image_utils.png as png
 from PIL import Image
 import os
 from io import BytesIO