move this to examples

Author: Matt Land

docs/pbm_test_code.py examples/imageload_netpbm.pydocs/pbm_test_code.py renamed to examples/imageload_netpbm.py

@@ -27,10 +27,10 @@
 splash = displayio.Group(max_size=10)
 display.show(splash)
 #image = "images/netpbm_p1_mono_ascii.pbm"
-#image = "images/netpbm_p4_mono_binary.pbm"
 #image = "images/netpbm_p2_ascii.pgm"
-#image = "images/netpbm_p5_binary.pgm"
 #image = "images/netpbm_p3_rgb_ascii.ppm"
+#image = "images/netpbm_p4_mono_binary.pbm"
+#image = "images/netpbm_p5_binary.pgm"
 image = "images/netpbm_p6_binary.ppm"
 
 bitmap, palette = adafruit_imageload.load(