LineMarker interface for vim

[poelzi]

the LineMarker? interface is not supported by vim.

see pida/core/editors.py class LineMarker?. bookmarks already use it and i'm thinking about using it for the language plugins as well.

important is that vim reports to the LineMarker? instances if the line changes, so the data and therefor the gui gets updated.

[ali]

Vim did have support for this, but was lost when the LineMarker? interface was added without considering how to do it with Vim.