add clearscreen, speedtest and random_pixel clients

python/clearscreen.py

+#!/usr/bin/python
+import client
+import random
+
+def clear():
+    pixels = [0] * client.HEIGHT * client.WIDTH
+    client.blit(0,0,client.WIDTH,client.HEIGHT,pixels)
+
+if __name__=="__main__":
+    clear()

python/random_pixel.py

+#!/usr/bin/python
+import client
+import random
+
+if __name__=="__main__":
+    while(True):
+        x = random.random() * client.WIDTH
+        y = random.random() * client.HEIGHT
+        client.set_pixel(x,y, 1 if random.random() > 0.5 else 0)
+

python/speedtest.py

+#!/usr/bin/python
+import client
+import random
+
+if __name__=="__main__":
+    for y in range(0, client.HEIGHT):
+        for x in range(0, client.WIDTH):
+            client.set_pixel(x,y,1)