Create initial Signature verification class

Initial version of the signature validation infrastructure
for BMC signed image.

Change-Id: I79d8ad10dbb7e3c4f0ffd21609b483be6734b4af
Signed-off-by: Jayanth Othayoth <ojayanth@in.ibm.com>
diff --git a/image_verify.cpp b/image_verify.cpp
new file mode 100644
index 0000000..be5536c
--- /dev/null
+++ b/image_verify.cpp
@@ -0,0 +1,17 @@
+#include "image_verify.hpp"
+
+namespace phosphor
+{
+namespace software
+{
+namespace image
+{
+
+bool Signature::verify()
+{
+    return true;
+}
+
+} // namespace image
+} // namespace software
+} // namespace phosphor