Create a sample project for Speckle-Unreal

[JR-Morgan]

Similar to the Speckle Playground sample project in Unity connector. We should create a simple runtime sample project as a quick demonstration of 1. what is possible, 2. how to do common basic tasks

The project should have:

• UI dropdown selection for which Stream/Branch (and idelaly also commit) to recieve.
• UI to display info about the selected stream (simply need to display some of the stream properties: e.g. description, last edited. Doesn't need to be exhaustive)
• Receive button!

The project would ideally be done mostly in BP (to be accessible) but could be a mix of BP and C++. And should depend on as few third-party plugins/libraries as possible.

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We don't need to go crazy with gravity, selecting, moving objects. Just selecting a stream/branch/commit to receive, and a button to receive.

See the Speckle-Unity sample project video below, our sample project for Unreal could look similar (although without object selection, sending, and auto receive updates)

https://user-images.githubusercontent.com/45512892/192300732-0711fcbd-c771-4120-9d14-9324ef9d8e2e.mp4

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Useful resources

• Tutorial: Unreal Engine - Fetching Stream / User details from Blueprint
• ReceiveSelectionComponent - unlikley this component can be reused, but as a C++ example, shows selection of Streams/Branches/Commits in C++

[bimgeek]

Closing this ticket as we are moving to Jira to reduce noise. You can access it there.