add crude encoding of PSN chunks

internal/encoders/data_tracker_accel_chunk.go

@@ -0,0 +1,16 @@
+package encoders
+
+import (
+	"encoding/binary"
+	"math"
+)
+
+func EncodeDataTrackerAccelChunk(x float32, y float32, z float32) []byte {
+	bytes := make([]byte, 12)
+
+	binary.LittleEndian.PutUint32(bytes[0:4], math.Float32bits(x))
+	binary.LittleEndian.PutUint32(bytes[4:8], math.Float32bits(y))
+	binary.LittleEndian.PutUint32(bytes[8:12], math.Float32bits(z))
+
+	return EncodeChunk(0x0004, bytes, false)
+}