feat(engine): basic attribute implementation

src/Engine/Operator/Attribute.cpp

@@ -0,0 +1,34 @@
+#include "Engine/Operator/Attribute.h"
+#include "Engine/Types.h"
+#include <memory>
+#include <stdexcept>
+#include <optional>
+
+using namespace enzo;
+
+
+ga::Attribute::Attribute(std::string name, ga::AttributeType type)
+: name_{name}, type_{type}
+{
+    // init store
+    switch(type_)
+    {
+        case(AttrType::intT):
+            intStore_=std::make_shared<std::vector<int>>();
+            break;
+        case(AttrType::floatT):
+            floatStore_=std::make_shared<std::vector<float>>();
+            break;
+        default:
+            throw std::runtime_error("Type " + std::to_string(static_cast<int>(type_)) + " was not accounted for");
+
+    }
+
+}
+
+ga::AttributeType ga::Attribute::getType()
+{
+    return type_;
+}
+
+