headlight rework and laser addition

pi/roverd/gpio_toggle_dummy.go

@@ -0,0 +1,26 @@
+//go:build dummy
+
+package roverd
+
+import (
+	"fmt"
+	"log"
+)
+
+type GPIOToggle struct {
+	name string
+}
+
+func NewGPIOToggle(name string, cfg GPIOToggleConfig, logger *log.Logger) (*GPIOToggle, error) {
+	return nil, fmt.Errorf("%s not supported in dummy build", name)
+}
+
+func (g *GPIOToggle) Close() {}
+
+func (g *GPIOToggle) HandleAction(action string) error {
+	return fmt.Errorf("%s not supported in dummy build", g.name)
+}
+
+func (g *GPIOToggle) On() bool {
+	return false
+}