[swift5] Map file and binary to Data

[aymanbagabas]

Fixes: #9308

PR checklist

• Read the contribution guidelines.
• Pull Request title clearly describes the work in the pull request and Pull Request description provides details about how to validate the work. Missing information here may result in delayed response from the community.
• Run the following to build the project and update samples:

  ./mvnw clean package 
  ./bin/generate-samples.sh
  ./bin/utils/export_docs_generators.sh
  

  Commit all changed files.
  This is important, as CI jobs will verify all generator outputs of your HEAD commit as it would merge with master.
  These must match the expectations made by your contribution.
  You may regenerate an individual generator by passing the relevant config(s) as an argument to the script, for example ./bin/generate-samples.sh bin/configs/java*.
  For Windows users, please run the script in Git BASH.
• File the PR against the correct branch: master, 5.1.x, 6.0.x
• If your PR is targeting a particular programming language, @mention the technical committee members, so they are more likely to review the pull request.

[4brunu]

@aymanbagabas why are you reming URL from the list of primitive types?

[aymanbagabas]

This is duplicated in line 123

[4brunu]

You are right 👍

[4brunu]

@aymanbagabas could you please introduce a flag to control the typeMapping to be URL or Data, depending on this flag?
Because we need to give an option to the users to set the old behaviour if they need it.

[aymanbagabas]

I think this is more of a "bug fix" than a new feature.

[4brunu]

The problem is that this is a big change that can impact users.
From what we discuss in the issue, the file download is not working, bit the file upload is working as expected, and this can potentially break it.
So I think it's a good ideia to give an option to keep the old behaviour in case the users found any issue with this change.

[4brunu]

@aymanbagabas I was reviewing the open PRs and saw this one.
Would you mind creating a flag to control the Data or URL usage, to allow the users to set the old behaviour if they need it?
If you don't have the time I can try to do it 🙂

[aymanbagabas]

@aymanbagabas I was reviewing the open PRs and saw this one.
Would you mind creating a flag to control the Data or URL usage, to allow the users to set the old behaviour if they need it?
If you don't have the time I can try to do it 🙂

Go ahead, I'm kinda busy nowadays and would really appreciate it

[aymanbagabas]

@4brunu I think the docs CI is failing due to a missing generator not related to this PR. Travis CI couldn't pull the docker image and thus is failing.

[4brunu]

@4brunu I think the docs CI is failing due to a missing generator not related to this PR. Travis CI couldn't pull the docker image and thus is failing.

@aymanbagabas I think you are right, let's way for the other CI's to see if they pass