feat(plugins): added more plugins

[finger563]

Description

• Made FlatNodes plugin part of the project (through submodule) so that you would not have to install it into your engine manually
• Added SnapCentral plugin to the project (disabled by default since I could not get it to package properly on windows and it does not support macos supposedly)
• Added Blockout Tools Plugin (submodule) to project to allow for easier level creation and prototyping
• Updated gitignore to ignore default platforms directory (created when playing on platform instead of in editor)
• Updated gitignore to ignore vsconfig file
• Updated gitignore to ignore packaged directory (which is what i selected when packaging)
• Updated project image
• Updated engine config for windows shader model 6 config

Motivation and Context

Right now if you wanted to run the project, you'd need to have the FlatNodes plugin installed into your engine. This solves that setup problem by including it as a submodule and helps us keep it up to date with the engine version supported by our project (currently 5.2). This additionally adds a few extra plugins which will help prototype other game modes and mechanics.

Plugins added:

• Snap Central
• [Blockout Tools)(https://www.unrealengine.com/marketplace/en-US/product/blockout-tools-plugin)

How has this been tested?

Building and packaging the project into executables on macos and windows (added to the v0.1.0 release)

Screenshots (if appropriate):

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] New Art / Asset
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] Documentation Update
• [ ] Art / Asset Update
• [x] Software change

Checklist:

• [ ] My change requires a change to the documentation.
• [ ] I have added / updated the documentation related to this change via either README or WIKI

Software

• [ ] I have added tests to cover my changes.
• [ ] I have updated the .github/workflows/build.yml file to add my new test to the automated cloud build github action.
• [ ] All new and existing tests passed.
• [ ] My code follows the code style of this project.