Add view per project to sprint board

[cyrildewit]

As a contributor I would like to have a project view for my repositories, so I can better focus on my tickets.

Description

@joeyvonck explained to me that they started to use the project within their repository, so they could focus more on their own tickets. I told them that we could create a view per project, so we can keep everything within the same project. This way everyone uses the same terminology.

[cyrildewit]