legacy.PinOutput->pin.Output and add High+Low methods on drivers.PinOutput and use them in drivers

internal/pin/pin.go

@@ -0,0 +1,23 @@
+package pin
+
+import "tinygo.org/x/drivers"
+
+// Here to aid relevant documentation links of [drivers.PinOutput] and [drivers.PinInput].
+var _ drivers.PinOutput
+
+// Output represents a pin hardware abstraction layer for a pin that can output a digital signal.
+//
+// This is an alternative to [drivers.PinOutput] abstraction which is a function type and has
+// not been standardized as of yet as a standard HAL in the drivers package,
+// [discussion ongoing here].
+//
+// [discussion ongoing here]: https://github.com/orgs/tinygo-org/discussions/5043
+type Output interface {
+	Set(level bool)
+}
+
+// Input represents a pin hardware abstraction layer.
+// See [Output] for more information on why this type exists separate to drivers.
+type Input interface {
+	Get() (level bool)
+}