examples/hwapi: Add hwconfig_pyboard.py for pyboard.

examples/hwapi/hwconfig_pyboard.py

+from machine import Pin, Signal
+
+# Red LED on pin LED_RED also kown as A13
+LED = Signal(Pin('LED_RED', Pin.OUT))
+
+# Green LED on pin LED_GREEN also known as A14
+LED2 = Signal(Pin('LED_GREEN', Pin.OUT))
+
+# Yellow LED on pin LED_YELLOW also known as A15
+LED3 = Signal(Pin('LED_YELLOW', Pin.OUT))
+
+# Blue LED on pin LED_BLUE also known as B4
+LED4 = Signal(Pin('LED_BLUE', Pin.OUT))