Create missing enumerations

[frabert]

This pull request fills several missing enumerations

[frabert]

I am planning to add more as I have just finished writing a tool to discover missing groups

[oddhack]

When you're done with this, please squash it down to a single commit. All looks fine so far.

[frabert]

@oddhack So I should close this PR when I'm done and re-open a new one containing a single commit?

[oddhack]

You can (if your git-fu is advanced enough) squash the commits in your local copy of the branch and force-push it to github, but your approach works too.

[frabert]

This is done. I will now try and squash the thing before it starts laying eggs.

[frabert]

@oddhack Done.

[oddhack]

Please see #46 / #47 and resubmit just the part of this changing the enum groups and adding group= tags to param tags. None of the group changes should have an effect on the generated headers.

[frabert]

@oddhack Ok, sorry for messing this up, I am trying to re-do this the right way now. Am I allowed to add group annotations for GLenum return types?

Like so:

         <command>
-            <proto><ptype>GLenum</ptype> <name>glClientWaitSync</name></proto>
+            <proto group="SyncStatus"><ptype>GLenum</ptype> <name>glClientWaitSync</name></proto>
             <param group="sync"><ptype>GLsync</ptype> <name>sync</name></param>
             <param><ptype>GLbitfield</ptype> <name>flags</name></param>
             <param><ptype>GLuint64</ptype> <name>timeout</name></param>
         </command>

[oddhack]

That's fine. It's the actual API - e.g. the resulting headers - that we don't want to change without more careful attention.