Add http response to TraktException

[simonc56]

To be able to read the "Retry-After" value of a 429 http error (trakt rate limit exceeded) the rised exception should give access to http response header.
This PR adds the http response to TraktException.

[glensc]

@twolaw rebase, you introduced somebody else commits, likely due forking of the older version of their master branch, see Commits and Files Changed tabs.

[simonc56]

you introduced somebody else commits

I know, I had to do that for tests to pass successfully.
If i rebase to master the tests will fail.

@moogar0880 should I rebase ? or wait for #137 merge ?

[glensc]

@twolaw I think then you should mark PR as Draft, as it's not ready for merge...

[glensc]

@twolaw you also have not included detail in this PR body that you took commits from elsewhere or that you even rely on some other PR...

[moogar0880]

@twolaw I'll wrap up testing on #137 and then we can rebase these changes on that. FWIW the commits you've added here definitely make sense 👍

[moogar0880]

@twolaw #137 just landed. you should be good to rebase and we can get these changes out with the 3.0.0 release

[moogar0880]

@twolaw LGTM. I'll get this merged and get the 3.0.0 release out shortly 👍