G60/G61 Position Save/Restore (#16557)

Marlin/src/core/language.h

@@ -222,6 +222,10 @@
 #define MSG_SOFT_MIN                        "  Min: "
 #define MSG_SOFT_MAX                        "  Max: "
 
+#define MSG_SAVED_POS                       "Position saved"
+#define MSG_RESTORING_POS                   "Restoring position"
+#define MSG_INVALID_POS_SLOT                "Invalid slot. Total: "
+
 #define MSG_SD_CANT_OPEN_SUBDIR             "Cannot open subdir "
 #define MSG_SD_INIT_FAIL                    "SD init fail"
 #define MSG_SD_VOL_INIT_FAIL                "volume.init failed"