feat: add KISS protocol escape functions in new kiss.go interface

pkg/interfaces/kiss.go

@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: 0BSD
+// Copyright (c) 2024-2026 Sudo-Ivan / Quad4.io
+package interfaces
+
+const (
+	KISS_FEND  = 0xC0
+	KISS_FESC  = 0xDB
+	KISS_TFEND = 0xDC
+	KISS_TFESC = 0xDD
+)
+
+func escapeKISS(data []byte) []byte {
+	escaped := make([]byte, 0, len(data)*2)
+	for _, b := range data {
+		if b == KISS_FEND {
+			escaped = append(escaped, KISS_FESC, KISS_TFEND)
+		} else if b == KISS_FESC {
+			escaped = append(escaped, KISS_FESC, KISS_TFESC)
+		} else {
+			escaped = append(escaped, b)
+		}
+	}
+	return escaped
+}
+