SDL_test: add SDLTest_LogEscapedString

include/SDL3/SDL_test_log.h

@@ -51,6 +51,16 @@ extern "C" {
  */
 void SDLCALL SDLTest_Log(SDL_PRINTF_FORMAT_STRING const char *fmt, ...) SDL_PRINTF_VARARG_FUNC(1);
 
+/**
+ * Prints given prefix and buffer.
+ * Non-printible characters in the raw data are substituted by printible alternatives.
+ *
+ * \param prefix Prefix message.
+ * \param buffer Raw data to be escaped.
+ * \param size Number of bytes in buffer.
+ */
+void SDLCALL SDLTest_LogEscapedString(const char *prefix, const void *buffer, size_t size);
+
 /**
  * Prints given message with a timestamp in the TEST category and the ERROR priority.
  *