[LibraryExporter] Adding Completion Status column to export

[luskynavy]

Extension name

LibraryExporter

Feature Description

Adding the completion status to export could be interesting. To track if a game ha been played, completed or planned to play. It should be parametrable like the others columns.

An pull request has already been made. https://github.com/darklinkpower/PlayniteExtensionsCollection/pull/417

Screenshots

An export:

Options:

[luskynavy]

Added to LibraryExporter, thanks.