Add Test Support

[austinkettner]

Add Tests into CameraKit Web

The project needs to be able to tested on every commit to ensure some base level functionality

• Project yarn install runs without error (warnings are ok)
• Project can be built without error yarn build
• Compiled code folder + minified single source file are importable (sample project) and functional without error for it's base usage. More advanced feature testing like capture tests/etc aren't covered here.