Fix import paths in examples to import pixel_mapper corectly

Author: clickonben

README.rst

@@ -112,7 +112,7 @@ Usage Example
     from adafruit_led_animation.animation.rainbowchase import RainbowChase
     from adafruit_led_animation.animation.rainbowcomet import RainbowComet
     from adafruit_led_animation.color import AMBER, JADE, PURPLE, RED, GREEN, BLUE,OLD_LACE,ORANGE
-    from imports.pixel_mappers import vertical_stacked_panels_mapper
+    from pixel_mapper import vertical_stacked_panels_mapper
 
     # Update to match the pin connected to your NeoPixels
     pixel_pin = board.GP2

examples/pixel_mapper_simpletest.py

@@ -10,7 +10,7 @@
 from adafruit_led_animation.animation.rainbowchase import RainbowChase
 from adafruit_led_animation.animation.rainbowcomet import RainbowComet
 from adafruit_led_animation.color import AMBER, JADE
-from imports.pixel_mappers import vertical_stacked_panels_mapper
+from pixel_mapper import vertical_stacked_panels_mapper
 
 # This example is for a 32x32 matrix made from four 8x32 panels stacked vertically.
 # Each panel uses a snaking (zigzag) layout: columns alternate direction.