Check rt correction by providing known landmark features as template or implement retention time correction based on landmark features

[hechth]

Implement a retention time clustering method that uses a provided list of landmark features or check if the current version with the template could actually be used for this. In theory, this should probably already be possible, since the template could just be provided as the landmark features to use for correction. A first way would be to test this if it works, otherwise we probably have to implement a method that does that.