add and update examples

examples/read_controller.py

@@ -0,0 +1,15 @@
+from pydualsense import *
+
+# create dualsense
+dualsense = pydualsense()
+# find device and initialize
+dualsense.init()
+
+# read controller state until R1 is pressed
+while not dualsense.state.R1:
+    print(f"Circle : {dualsense.state.circle} Cross : {dualsense.state.cross} L Stick X : {dualsense.state.LX} L Stick Y : {dualsense.state.LY}")
+
+# close device
+dualsense.close()
+
+