Swift5 namespace changes

[aymanbagabas]

Based on this discussion #9583 (review)

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[4brunu]

@aymanbagabas Since this PR is big because this changes modify a lot of files in the sample projects, I opened aymanbagabas#16 to reduce the model changes, and make it easier to review this PR.

[4brunu]

@aymanbagabas overall the PR looks good, I just would like to understand better the changes in the method init(from decoder: Decoder) throws before approving this PR.

[aymanbagabas]

@aymanbagabas overall the PR looks good, I just would like to understand better the changes in the method init(from decoder: Decoder) throws before approving this PR.

Since we're using Codable, it's preferable to pair it with CodingKeys to encode/decode custom types as explained here. This change should've been part of 0f5e7d1 but somehow it slipped.

[4brunu]

Thanks, looks good to me 👍

[wing328]

@aymanbagabas can you please resolve the merge conflicts when you've time?

[4brunu]

Thanks for fixing the merge conflicts 👍