feat: render open and closed faces/lines

src/Engine/Types.h

@@ -19,6 +19,7 @@ namespace enzo
             floatT,
             listT,
             vectorT,
+            boolT,
         };
         using AttrType = AttributeType;
         using AttrOwner = AttributeOwner;
@@ -29,6 +30,7 @@ namespace enzo
     {
         using floatT = double;
         using intT = int64_t;
+        using boolT = bool;
         using Vector3 = Eigen::Vector3d;
         using Vector4 = Eigen::Vector4d;
         using String = std::string;