refactor: declare ascii_mode in libectool header

Author: AhmedYasserrr

src/core/libectool.cc

@@ -30,6 +30,7 @@
 #define GEC_LOCK_TIMEOUT_SECS 30 /* 30 secs */
 #define interfaces COMM_ALL
 
+int ascii_mode;
 // -----------------------------------------------------------------------------
 //  Helper functions
 // -----------------------------------------------------------------------------

src/core/libectool.h

@@ -1,6 +1,8 @@
 #ifndef LIBECTOOL_H
 #define LIBECTOOL_H
 
+#include <stdbool.h>
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -16,6 +18,9 @@ void set_fan_speed(int speed);
 float get_max_temperature();
 float get_max_non_battery_temperature();
 
+/* ASCII mode for printing, default off */
+extern int ascii_mode;
+
 #ifdef __cplusplus
 }
 #endif