Add PyTorch tests

[kmariuszk]

Testing functionality of PyTorch models.

[kmariuszk]

@pat-alt could you please take a look at the error message thrown by the pipelines Julia1.7 and Julia1.8? It popped up after I added

using PackageExtensionCompat
function __init__()
    @require_extensions
end

in the src/TaijaInteroperability.jl folder. My best guess why it pops up is the fact that I didn't create Project.toml in the test folder and handled the dependencies in the root Project.toml file. Do you think that's the case? Or am I missing something else?

[pat-alt]

@pat-alt could you please take a look at the error message thrown by the pipelines Julia1.7 and Julia1.8? It popped up after I added

using PackageExtensionCompat
function __init__()
    @require_extensions
end

in the src/TaijaInteroperability.jl folder. My best guess why it pops up is the fact that I didn't create Project.toml in the test folder and handled the dependencies in the root Project.toml file. Do you think that's the case? Or am I missing something else?

Exactly, just create a separate env for tests in the test folder and add those deps