add missing files, support display blanking

item.h

@@ -0,0 +1,14 @@
+#pragma once
+#include <stdint.h>
+
+class Item
+{
+public:
+    static constexpr uint16_t MAX_NAME_LENGTH = 16;
+    bool lastValue = 0;
+    uint16_t id;
+    char name[MAX_NAME_LENGTH]="";
+    uint8_t type = 0;
+    
+    void setName(const char * const name);
+};