Add version info to the API definition

Author: callumfare

offload/new-api/API/Common.td

@@ -1,3 +1,21 @@
+def : Macro {
+  let name = "OFFLOAD_VERSION_MAJOR";
+  let desc = "Major version of the Offload API";
+  let value = "0";
+}
+
+def : Macro {
+  let name = "OFFLOAD_VERSION_MINOR";
+  let desc = "Minor version of the Offload API";
+  let value = "0";
+}
+
+def : Macro {
+  let name = "OFFLOAD_VERSION_PATCH";
+  let desc = "Patch version of the Offload API";
+  let value = "1";
+}
+
 def : Macro {
   let name = "OFFLOAD_APICALL";
   let desc = "Calling convention for all API functions";

offload/new-api/include/offload_api.h

@@ -17,6 +17,24 @@
 extern "C" {
 #endif
 
+///////////////////////////////////////////////////////////////////////////////
+#ifndef OFFLOAD_VERSION_MAJOR
+/// @brief Major version of the Offload API
+#define OFFLOAD_VERSION_MAJOR 0
+#endif // OFFLOAD_VERSION_MAJOR
+
+///////////////////////////////////////////////////////////////////////////////
+#ifndef OFFLOAD_VERSION_MINOR
+/// @brief Minor version of the Offload API
+#define OFFLOAD_VERSION_MINOR 0
+#endif // OFFLOAD_VERSION_MINOR
+
+///////////////////////////////////////////////////////////////////////////////
+#ifndef OFFLOAD_VERSION_PATCH
+/// @brief Patch version of the Offload API
+#define OFFLOAD_VERSION_PATCH 1
+#endif // OFFLOAD_VERSION_PATCH
+
 ///////////////////////////////////////////////////////////////////////////////
 #ifndef OFFLOAD_APICALL
 #if defined(_WIN32)