VersionAlreadyExists error and throw back to client

[gtmills]

Can we create a VersionAlreadyExists error?

And throw that back in bmcweb

Would add to file:

phosphor-bmc-code-mgmt/xyz/openbmc_project/Software/Image.errors.yaml

Line 11 in ebcc194

phosphor-bmc-code-mgmt/image_manager.cpp

Line 212 in d148b4f

log<level::INFO>("Software Object with the same version already exists",

https://github.com/openbmc/bmcweb/blob/3a17e02873fdf53898a2cfce894dcb36223d76d4/redfish-core/lib/update_service.hpp#L352

@anoo1 FYI

[gtmills]

I'll push something for this :)