Replace Dot Hints With Number Hints (#52)

As title says, makes the holograms much more readable.

Textures By: bapy_
Original PR By: kstvr32

Supercedes: https://github.com/GTNewHorizons/StructureLib/pull/32

Examples:
<img width="2534" height="1351" alt="image"
src="https://github.com/user-attachments/assets/c24f60b2-d654-4b15-b917-4003141a2b69"
/>
<img width="2538" height="1350" alt="image"
src="https://github.com/user-attachments/assets/a5ca3f42-ca96-4675-8e80-c89fba359fbf"
/>

src/main/java/com/gtnewhorizon/structurelib/block/BlockHint.java

@@ -50,6 +50,10 @@ public class BlockHint extends Block {
 
     @Override
     public IIcon getIcon(int aSide, int aMeta) {
+        // For numbered hints, top and bottom are blank
+        if (aSide <= 1 && aMeta <= 11) {
+            return hint[13];
+        }
         return hint[aMeta];
     }