Add InputTopologyVertices from torzu adapted to eden

src/shader_recompiler/runtime_info.h

@@ -30,6 +30,24 @@ enum class InputTopology {
     TrianglesAdjacency,
 };
 
+struct InputTopologyVertices {
+    static u32 vertices(InputTopology input_topology) {
+        switch (input_topology) {
+        case InputTopology::Lines:
+            return 2;
+        case InputTopology::LinesAdjacency:
+            return 4;
+        case InputTopology::Triangles:
+            return 3;
+        case InputTopology::TrianglesAdjacency:
+            return 6;
+        case InputTopology::Points:
+        default:
+            return 1;
+        }
+    }
+};
+
 enum class CompareFunction {
     Never,
     Less,