Obsolete the graphics API in the .rsh files.

Mark the graphics APIs as no longer available starting with version 23.

Modify the generator to change the #ifdef guards around the API to
enable internal code to still access the obsoleted APIs, as we still
neeed to support them at runtime.

Also, include a documentation change in the rs_convert header file that had not
been included previously.

Change-Id: Iaad4833f504da9aa9f5069a977c37b86d1316d3a
diff --git a/api/GenerateDocumentation.cpp b/api/GenerateDocumentation.cpp
index 389eac9..b78edae 100644
--- a/api/GenerateDocumentation.cpp
+++ b/api/GenerateDocumentation.cpp
@@ -322,7 +322,7 @@
         if (info.minVersion <= 1) {
             // No minimum
             if (info.maxVersion > 0) {
-                stream << "Removed from " << mid << info.maxVersion + 1;
+                stream << "Removed from " << mid << info.maxVersion + 1 << " and beyond";
             }
         } else {
             if (info.maxVersion == 0) {