Support for Azure Dall-e

[glecaros]

This PR updates #337 with updates for it to work with the latest API preview

[jhallard]

Changes look good and the checks for api_type are in-line with what already exists inside this repo. Before merging, can you confirm: have you tested this manually? There aren't any tests here but not much of this code looks like it requires testing. As long as you've done one end-to-end run I'll be happy.

Thanks!

[glecaros]

Changes look good and the checks for api_type are in-line with what already exists inside this repo. Before merging, can you confirm: have you tested this manually? There aren't any tests here but not much of this code looks like it requires testing. As long as you've done one end-to-end run I'll be happy.

Thanks!

Hey, I have tested it manually. Once this is checked in we will add automation in our end to exercise it, thanks!

[glecaros]

hey @jhallard, I have tested again using the latest set of changes and everything still looks good, so we are ready to merge, thanks for the review!