blocks and items 'caption' property

src/items/ItemDef.cpp

@@ -1,4 +1,6 @@
 #include "ItemDef.h"
+#include "../util/stringutil.h"
 
 ItemDef::ItemDef(std::string name) : name(name) {
+    caption = util::id_to_caption(name);
 }

src/items/ItemDef.h

@@ -21,8 +21,12 @@ enum class item_icon_type {
 
 class ItemDef {
 public:
+    /// @brief Item string id (with prefix included)
     std::string const name;
 
+    /// @brief Item name will shown in inventory
+    std::string caption;
+
     itemcount_t stackSize = 64;
     bool generated = false;
     uint8_t emission[4] {0, 0, 0, 0};