wip step modes

example.motor.toml

@@ -1,2 +1,4 @@
-pin_mappings = [0, 2, 3, 4]
-sleep_time = { secs = 0, nanos = 7_000_000 }
+
+pin_mappings = [17, 27, 22, 23]
+sleep_time = { secs = 0, nanos = 5_000_000 }
+step_mode = "OneTwo" # or "One" or "Two"