OMEXMLModelEnumHandler template: Correct type evaluation order

[rleigh-codelibre]

Closes: #132

Testing: You will need to check which type each primitive type extends and confirm that the ordering is from most-derived to least-derived so that all types are correctly processed. You could alternatively run a static analyser on the generated sources to confirm that none of the conditional blocks are unreachable (which is how the defect was originally found).

Generated source changes: Download the diff from here or generate the diff yourself.

[imagesc-bot]

This pull request has been mentioned on Image.sc Forum. There might be relevant details there:

https://forum.image.sc/t/static-analysis-and-ome-model-bugfixes/45977/1

[rleigh-codelibre]

Rebased to run with GitHub Actions.