Get access to the files within the manifest

If the code is referencing a package - we can add it to the manifest using this.

Manually add a file to the manifest

Fetch a list of game settings to be added to the project's metadata

Check the intended manifest, ask the backend which files need to be uploaded.

Publish a new revision

Allows to set information on the revision - for future reference

Return true if we're not opposed to publishing this asset