[frame] Use protobuf messages

vendor/github.com/cyrilix/robocar-base/types/mode.go

@@ -0,0 +1,36 @@
+package types
+
+import (
+	"log"
+)
+
+type DriveMode int
+
+const (
+	DriveModeInvalid = -1
+	DriveModeUser    = iota
+	DriveModePilot
+)
+
+func ToString(mode DriveMode) string {
+	switch mode {
+	case DriveModeUser:
+		return "user"
+	case DriveModePilot:
+		return "pilot"
+	default:
+		return ""
+	}
+}
+
+func ParseString(val string) DriveMode {
+	switch val {
+	case "user":
+		return DriveModeUser
+	case "pilot":
+		return DriveModePilot
+	default:
+		log.Printf("invalid DriveMode: %v", val)
+		return DriveModeInvalid
+	}
+}

vendor/github.com/cyrilix/robocar-base/types/rc.go

@@ -0,0 +1,10 @@
+package types
+
+/* Radio control value */
+type RCValue struct {
+	Value      float64
+	Confidence float64
+}
+
+type Steering RCValue
+type Throttle RCValue

vendor/github.com/cyrilix/robocar-base/types/types.go

@@ -0,0 +1,5 @@
+package types
+
+type BoundingBox struct {
+	Left, Top, Right, Bottom int
+}