Added launchsettings.json files for each runnable project

[ACCC-DF]

Checklist: (Put an x in all the boxes that apply)

• [x] I have read the CONTRIBUTING document.
• [x] My code follows the code style of this project.
• [ ] I have updated the documentation accordingly.
• [ ] I have added tests to cover my changes.
• [ ] All new and existing tests passed.
• [x] I have checked that there aren't any other open Pull Requests from the same change.
• [x] The develop branch has been set as the base branch to merge changes of the pull request.
• [x] I have updated the CHANGELOG.md file as appropriate.

What kind of change does this PR introduce? (Bug fix, feature, docs update, ...) Added launchsettings.json files to runnable projects to enable startup from Visual Studio using the correct ports and settings.

What is the current behavior? (You can also link to an open issue here) With no consistent launch settings each project can be assigned a random port when starting which doesn't match to the expected behaviour of the solution components.

What is the new behavior? (if this is a feature change) Projects can startup from Visual Studio configured with the expected URL and port.

Does this PR introduce a breaking change? (What changes might users need to make in their application due to this PR?) No.

Other information:

[CDR-AndrewG]

Will re-open at a later date.