Create SDEventPlus class delegate for sdeventplus

Create a SDEventPlus class delegate to get a pure static instance event
from sdeventplus.

Signed-off-by: Matthew Barth <msbarth@us.ibm.com>
Change-Id: I8137248d1eaae205b2c33019036d76b46e0fdedc
diff --git a/sdeventplus.hpp b/sdeventplus.hpp
new file mode 100644
index 0000000..a7bbd5c
--- /dev/null
+++ b/sdeventplus.hpp
@@ -0,0 +1,39 @@
+/**
+ * Copyright © 2021 IBM Corporation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#pragma once
+
+#include <sdeventplus/event.hpp>
+
+namespace phosphor::fan::util
+{
+
+/** @class SDEventPlus
+ *  @brief Event access delegate implementation for sdeventplus.
+ */
+class SDEventPlus
+{
+  public:
+    /**
+     * @brief Get the event instance
+     */
+    static auto& getEvent() __attribute__((pure))
+    {
+        static auto event = sdeventplus::Event::get_default();
+        return event;
+    }
+};
+
+} // namespace phosphor::fan::util