Move commands from ipmi-providers

Many commands were in ipmi-providers and need to be moved into the
active development library (intel-ipmi-oem). This copies wholesale
those commands, even though many need to be rewritten to use the new
ipmi providers API.

Tested-by: build and see that the commands are still present even when
           the ipmi-providers library is removed

Change-Id: If326f5d7844adeed7da2d3b7a2f1d3eeeea43b29
Signed-off-by: Vernon Mauery <vernon.mauery@linux.intel.com>
diff --git a/include/variantvisitors.hpp b/include/variantvisitors.hpp
new file mode 100644
index 0000000..f8dbb0c
--- /dev/null
+++ b/include/variantvisitors.hpp
@@ -0,0 +1,27 @@
+/*
+// Copyright (c) 2017 Intel 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 <cstdint>
+#include <limits>
+#include <sdbusplus/bus.hpp>
+namespace ipmi
+{
+
+using DbusVariant =
+    sdbusplus::message::variant<std::string, bool, uint8_t, uint16_t, int16_t,
+                                uint32_t, int32_t, uint64_t, int64_t, double>;
+} // namespace ipmi